Updated glibc packages that fix two security issues are now available for Red Hat Enterprise Linux 5, 6, and 7.

Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The glibc packages contain the standard C libraries used by multiple programs on the system. These packages contain the standard C and the standard math libraries. Without these two libraries, a Linux system cannot function properly.

An off-by-one heap-based buffer overflow flaw was found in glibc's internal __gconv_translit_find() function. An attacker able to make an application call the iconv_open() function with a specially crafted argument could possibly use this flaw to execute arbitrary code with the privileges of that application. (CVE-2014-5119)

A directory traversal flaw was found in the way glibc loaded locale files. An attacker able to make an application use a specially crafted locale name value (for example, specified in an LC_* environment variable) could possibly use this flaw to execute arbitrary code with the privileges of that application. (CVE-2014-0475)

Red Hat would like to thank Stephane Chazelas for reporting CVE-2014-0475.

All glibc users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

Multiple vulnerabilities has been found and corrected in glibc :

When converting IBM930 code with iconv(), if IBM930 code which includes invalid multibyte character 0xffff is specified, then iconv() segfaults (CVE-2012-6656).

Off-by-one error in the __gconv_translit_find function in gconv_trans.c in GNU C Library (aka glibc) allows context-dependent attackers to cause a denial of service (crash) or execute arbitrary code via vectors related to the CHARSET environment variable and gconv transliteration modules (CVE-2014-5119).

Crashes were reported in the IBM code page decoding functions (IBM933, IBM935, IBM937, IBM939, IBM1364) (CVE-2014-6040).

The updated packages have been patched to correct these issues.

An off-by-one heap-based buffer overflow flaw was found in glibc's internal __gconv_translit_find() function. An attacker able to make an application call the iconv_open() function with a specially crafted argument could possibly use this flaw to execute arbitrary code with the privileges of that application. (CVE-2014-5119).

A directory traversal flaw was found in the way glibc loaded locale files. An attacker able to make an application use a specially crafted locale name value (for example, specified in an LC_* environment variable) could possibly use this flaw to execute arbitrary code with the privileges of that application. (CVE-2014-0475)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote OracleVM system is missing necessary patches to address critical security updates :

  - Remove gconv transliteration loadable modules support     (CVE-2014-5119, - _nl_find_locale: Improve handling of     crafted locale names (CVE-2014-0475, 

  - Don't use alloca in addgetnetgrentX (#1087789).

  - Adjust pointers to triplets in netgroup query data     (#1087789).

  - Return EAI_AGAIN for AF_UNSPEC when herrno is TRY_AGAIN     (#1098050).

  - Fix race in free of fastbin chunk (#1091162).

  - Revert the addition of gettimeofday vDSO function for     ppc and ppc64 until OPD VDSO function call issues are     resolved (#1026533).

  - Call gethostbyname4_r only for PF_UNSPEC (#1022022).

  - Fix integer overflows in *valloc and memalign.
    (#1008310).

  - Initialize res_hconf in nscd (#970090).

  - Update previous patch for dcigettext.c and loadmsgcat.c     (#834386).

  - Save search paths before performing relro protection     (#988931).

  - Correctly name the 240-bit slow path sytemtap probe     slowpow_p10 for slowpow (#905575).

  - Align value of stacksize in nptl-init (#663641).

  - Renamed release engineering directory from 'fedora' to     `releng' (#903754).

  - Backport GLIBC sched_getcpu and gettimeofday vDSO     functions for ppc (#929302).

  - Fall back to local DNS if resolv.conf does not define     nameservers (#928318).

  - Add systemtap probes to slowexp and slowpow (#905575).

  - Fix getaddrinfo stack overflow resulting in application     crash (CVE-2013-1914, #951213).

  - Fix multibyte character processing crash in regexp     (CVE-2013-0242, #951213).

  - Add netgroup cache support for nscd (#629823).

  - Fix multiple nss_compat initgroups bugs (#966778).

  - Don't use simple lookup for AF_INET when AI_CANONNAME is     set (#863384).

  - Add MAP_HUGETLB and MAP_STACK support (#916986).

  - Update translation for stale file handle error     (#970776).

  - Improve performance of _SC_NPROCESSORS_ONLN (#rh952422).

  - Fix up _init in pt-initfini to accept arguments     (#663641).

  - Set reasonable limits on xdr requests to prevent memory     leaks (#848748).

  - Fix mutex locking for PI mutexes on spurious wake-ups on     pthread condvars (#552960).

  - New environment variable GLIBC_PTHREAD_STACKSIZE to set     thread stack size (#663641).

  - Improved handling of recursive calls in backtrace     (#868808).

  - The ttyname and ttyname_r functions on Linux now fall     back to searching for the tty file descriptor in     /dev/pts or /dev if /proc is not available. This allows     creation of chroots without the procfs mounted on /proc.
    (#851470)

  - Don't free rpath strings allocated during startup until     after ld.so is re-relocated. (#862094)

  - Consistantly MANGLE/DEMANGLE function pointers. Fix use     after free in dcigettext.c (#834386).

  - Change rounding mode only when necessary (#966775).

  - Backport of code to allow incremental loading of library     list (#886968).

  - Fix loading of audit libraries when TLS is in use     (#919562)

  - Fix application of SIMD FP exception mask (#929388).

The remote OracleVM system is missing necessary patches to address critical security updates :

  - Switch to use malloc when the input line is too long     [Orabug 19951108]

  - Use a /sys/devices/system/cpu/online for
    _SC_NPROCESSORS_ONLN implementation [Orabug 17642251]     (Joe Jin)

  - Fix parsing of numeric hosts in gethostbyname_r     (CVE-2015-0235, #1183532).

  - Remove gconv transliteration loadable modules support     (CVE-2014-5119, - _nl_find_locale: Improve handling of     crafted locale names (CVE-2014-0475, 

  - Fix patch for integer overflows in *valloc and memalign.
    (CVE-2013-4332, #1011805).

  - Fix return code when starting an already started nscd     daemon (#979413).

  - Fix getnameinfo for many PTR record queries (#1020486).

  - Return EINVAL error for negative sizees to getgroups     (#995207).

  - Fix integer overflows in *valloc and memalign.
    (CVE-2013-4332, #1011805).

  - Add support for newer L3 caches on x86-64 and correctly     count the number of hardware threads sharing a cacheline     (#1003420).

  - Revert incomplete fix for bug #758193.

  - Fix _nl_find_msg malloc failure case, and callers     (#957089).

  - Test on init_fct, not result->__init_fct, after     demangling (#816647).

  - Don't handle ttl == 0 specially (#929035).

  - Fix multibyte character processing crash in regexp     (CVE-2013-0242, #951132)

  - Fix getaddrinfo stack overflow resulting in application     crash (CVE-2013-1914, #951132)

  - Add missing patch to avoid use after free (#816647)

  - Fix race in initgroups compat_call (#706571)

  - Fix return value from getaddrinfo when servers are down.
    (#758193)

  - Fix fseek on wide character streams. Sync's seeking code     with RHEL 6 (#835828)

  - Call feraiseexcept only if exceptions are not masked     (#861871).

  - Always demangle function before checking for NULL value.
    (#816647).

  - Do not fail in ttyname if /proc is not available     (#851450).

  - Fix errno for various overflow situations in vfprintf.
    Add missing overflow checks. (#857387)

  - Handle failure of _nl_explode_name in all cases     (#848481)

  - Define the default fuzz factor to 2 to make it easier to     manipulate RHEL 5 RPMs on RHEL 6 and newer systems.

  - Fix race in intl/* testsuite (#849202)

  - Fix out of bounds array access in strto* exposed by     847930 patch.

  - Really fix POWER4 strncmp crash (#766832).

  - Fix integer overflow leading to buffer overflow in     strto* (#847930)

  - Fix race in msort/qsort (#843672)

  - Fix regression due to 797096 changes (#845952)

  - Do not use PT_IEEE_IP ptrace calls (#839572)

  - Update ULPs (#837852)

  - Fix various transcendentals in non-default rounding     modes (#837852)

  - Fix unbound alloca in vfprintf (#826947)

  - Fix iconv segfault if the invalid multibyte character     0xffff is input when converting from IBM930. (#823905)

  - Fix fnmatch when '*' wildcard is applied on a file name     containing multibyte chars. (#819430)

  - Fix unbound allocas use in glob_in_dir, getaddrinfo and     others. (#797096)

  - Fix segfault when running ld.so --verify on some DSO's     in current working directory. (#808342)

  - Incorrect initialization order for dynamic loader     (#813348)

  - Fix return code when stopping already stopped nscd     daemon (#678227)

  - Remove MAP_32BIT for pthread stack mappings, use     MAP_STACK instead (#641094)

  - Fix setuid vs sighandler_setxid race (#769852)

  - Fix access after end of search string in regex matcher     (#757887)

  - Fix POWER4 strncmp crash (#766832)

  - Fix SC_*CACHE detection for X5670 cpus (#692182)

  - Fix parsing IPV6 entries in /etc/resolv.conf (#703239)

  - Fix double-free in nss_nis code (#500767)

  - Add kernel VDSO support for s390x (#795896)

  - Fix race in malloc arena creation and make     implementation match documented behaviour (#800240)

  - Do not override TTL of CNAME with TTL of its alias     (#808014)

  - Fix short month names in fi_FI locale #(657266).

  - Fix nscd crash for group with large number of members     (#788989)

  - Fix Slovakia currency (#799853)

  - Fix getent malloc failure check (#806403)

  - Fix short month names in zh_CN locale (#657588)

  - Fix decimal point symbol for Portuguese currency     (#710216)

  - Avoid integer overflow in sbrk (#767358)

  - Avoid race between [,__de]allocate_stack and
    __reclaim_stacks during fork (#738665)

  - Fix race between IO_flush_all_lockp & pthread_cancel     (#751748)

  - Fix memory leak in NIS endgrent (#809325)

  - Allow getaddr to accept SCTP socket types in hints     (#765710)

  - Fix errno handling in vfprintf (#794814)

  - Filter out <built-in> when building file lists     (#784646).

  - Avoid 'nargs' integer overflow which could be used to     bypass FORTIFY_SOURCE (#794814)

  - Fix currency_symbol for uk_UA (#639000)

  - Correct test for detecting cycle during topo sort     (#729661)

  - Check values from TZ file header (#767688)

  - Complete the numeric settings fix (#675259)

  - Complete the change for error codes from pthread_create     (#707998)

  - Truncate time values in Linux futimes when falling back     to utime (#758252)

  - Update systemtaparches

  - Add rules to build libresolv with SSP flags (#756453)

  - Fix PLT reference

  - Workaround misconfigured system (#702300)

  - Update systemtaparches

  - Correct cycle detection during dependency sorting     (#729661)

  - Add gdb hooks (#711924)

  - Fix alloca accounting in strxfm and strcoll (#585433)

  - Correct cycle detection during dependency sorting     (#729661)

  - ldd: never run file directly (#531160)

  - Implement greedy matching of weekday and month names     (#657570)

  - Fix incorrect numeric settings (#675259)

  - Implement new mode for NIS passwd.adjunct.byname table     (#678318)

  - Query NIS domain only when needed (#703345)

  - Count total processors using sysfs (#706894)

  - Translate clone error if necessary (#707998)

  - Workaround kernel clobbering robust list (#711531)

  - Use correct type when casting d_tag (#599056,     CVE-2010-0830)

  - Report write error in addmnt even for cached streams     (#688980, CVE-2011-1089)

  - Don't underestimate length of DST substitution (#694655)

  - Don't allocate executable stack when it cannot be     allocated in the first 4G (#448011)

  - Initialize resolver state in nscd (#676039)

  - No cancel signal in unsafe places (#684808)

  - Check size of pattern in wide character representation     in fnmatch (#681054)

  - Avoid too much stack use in fnmatch (#681054,     CVE-2011-1071)

  - Properly quote output of locale (#625893, CVE-2011-1095)

  - Don't leave empty element in rpath when skipping the     first element, ignore rpath elements containing     non-isolated use of $ORIGIN when privileged (#667974,     CVE-2011-0536)

  - Fix handling of newline in addmntent (#559579,     CVE-2010-0296)

  - Don't ignore $ORIGIN in libraries (#670988)

  - Fix false assertion (#604796)

  - Fix ordering of DSO constructors and destructors     (#604796)

  - Fix typo (#531576)

  - Fix concurrency problem between dl_open and     dl_iterate_phdr (#649956)

  - Require suid bit on audit objects in privileged programs     (#645678, CVE-2010-3856)

  - Never expand $ORIGIN in privileged programs (#643819,     CVE-2010-3847)

  - Add timestamps to nscd logs (#527558)

  - Fix index wraparound handling in memusage (#531576)

  - Handle running out of buffer space with IPv6 mapping     enabled (#533367)

  - Don't deadlock in __dl_iterate_phdr while (un)loading     objects (#549813)

  - Avoid alloca in setenv for long strings (#559974)

  - Recognize POWER7 and ISA 2.06 (#563563)

  - Add support for AT_BASE_PLATFORM (#563599)

  - Restore locking in free_check (#585674)

  - Fix lookup of collation sequence value during regexp     matching (#587360)

  - Fix POWER6 memcpy/memset (#579011)

  - Fix scope handling during dl_close (#593675)

  - Enable -fasynchronous-unwind-tables throughout (#593047)

  - Fix crash when aio thread creation fails (#566712)

The remote OracleVM system is missing necessary patches to address critical security updates :

  - Switch to use malloc when the input line is too long     [Orabug 19951108]

  - Use a /sys/devices/system/cpu/online for
    _SC_NPROCESSORS_ONLN implementation [Orabug 17642251]     (Joe Jin)

  - Fix parsing of numeric hosts in gethostbyname_r     (CVE-2015-0235, #1183532).

  - Remove gconv transliteration loadable modules support     (CVE-2014-5119, - _nl_find_locale: Improve handling of     crafted locale names (CVE-2014-0475, 

  - Fix patch for integer overflows in *valloc and memalign.
    (CVE-2013-4332, #1011805).

  - Fix return code when starting an already started nscd     daemon (#979413).

  - Fix getnameinfo for many PTR record queries (#1020486).

  - Return EINVAL error for negative sizees to getgroups     (#995207).

  - Fix integer overflows in *valloc and memalign.
    (CVE-2013-4332, #1011805).

  - Add support for newer L3 caches on x86-64 and correctly     count the number of hardware threads sharing a cacheline     (#1003420).

  - Revert incomplete fix for bug #758193.

  - Fix _nl_find_msg malloc failure case, and callers     (#957089).

  - Test on init_fct, not result->__init_fct, after     demangling (#816647).

  - Don't handle ttl == 0 specially (#929035).

  - Fix multibyte character processing crash in regexp     (CVE-2013-0242, #951132)

  - Fix getaddrinfo stack overflow resulting in application     crash (CVE-2013-1914, #951132)

  - Add missing patch to avoid use after free (#816647)

  - Fix race in initgroups compat_call (#706571)

  - Fix return value from getaddrinfo when servers are down.
    (#758193)

  - Fix fseek on wide character streams. Sync's seeking code     with RHEL 6 (#835828)

  - Call feraiseexcept only if exceptions are not masked     (#861871).

  - Always demangle function before checking for NULL value.
    (#816647).

  - Do not fail in ttyname if /proc is not available     (#851450).

  - Fix errno for various overflow situations in vfprintf.
    Add missing overflow checks. (#857387)

  - Handle failure of _nl_explode_name in all cases     (#848481)

  - Define the default fuzz factor to 2 to make it easier to     manipulate RHEL 5 RPMs on RHEL 6 and newer systems.

  - Fix race in intl/* testsuite (#849202)

  - Fix out of bounds array access in strto* exposed by     847930 patch.

  - Really fix POWER4 strncmp crash (#766832).

  - Fix integer overflow leading to buffer overflow in     strto* (#847930)

  - Fix race in msort/qsort (#843672)

  - Fix regression due to 797096 changes (#845952)

  - Do not use PT_IEEE_IP ptrace calls (#839572)

  - Update ULPs (#837852)

  - Fix various transcendentals in non-default rounding     modes (#837852)

  - Fix unbound alloca in vfprintf (#826947)

  - Fix iconv segfault if the invalid multibyte character     0xffff is input when converting from IBM930. (#823905)

  - Fix fnmatch when '*' wildcard is applied on a file name     containing multibyte chars. (#819430)

  - Fix unbound allocas use in glob_in_dir, getaddrinfo and     others. (#797096)

  - Fix segfault when running ld.so --verify on some DSO's     in current working directory. (#808342)

  - Incorrect initialization order for dynamic loader     (#813348)

  - Fix return code when stopping already stopped nscd     daemon (#678227)

  - Remove MAP_32BIT for pthread stack mappings, use     MAP_STACK instead (#641094)

  - Fix setuid vs sighandler_setxid race (#769852)

  - Fix access after end of search string in regex matcher     (#757887)

  - Fix POWER4 strncmp crash (#766832)

  - Fix SC_*CACHE detection for X5670 cpus (#692182)

  - Fix parsing IPV6 entries in /etc/resolv.conf (#703239)

  - Fix double-free in nss_nis code (#500767)

  - Add kernel VDSO support for s390x (#795896)

  - Fix race in malloc arena creation and make     implementation match documented behaviour (#800240)

  - Do not override TTL of CNAME with TTL of its alias     (#808014)

  - Fix short month names in fi_FI locale #(657266).

  - Fix nscd crash for group with large number of members     (#788989)

  - Fix Slovakia currency (#799853)

  - Fix getent malloc failure check (#806403)

  - Fix short month names in zh_CN locale (#657588)

  - Fix decimal point symbol for Portuguese currency     (#710216)

  - Avoid integer overflow in sbrk (#767358)

  - Avoid race between [,__de]allocate_stack and
    __reclaim_stacks during fork (#738665)

  - Fix race between IO_flush_all_lockp & pthread_cancel     (#751748)

  - Fix memory leak in NIS endgrent (#809325)

  - Allow getaddr to accept SCTP socket types in hints     (#765710)

  - Fix errno handling in vfprintf (#794814)

  - Filter out <built-in> when building file lists     (#784646).

  - Avoid 'nargs' integer overflow which could be used to     bypass FORTIFY_SOURCE (#794814)

  - Fix currency_symbol for uk_UA (#639000)

The remote host is affected by the vulnerability described in GLSA-201602-02 (GNU C Library: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in the GNU C Library:
      The Google Security Team and Red Hat discovered a stack-based buffer         overflow in the send_dg() and send_vc() functions due to a buffer         mismanagement when getaddrinfo() is called with AF_UNSPEC         (CVE-2015-7547).
      The strftime() function access invalid memory when passed         out-of-range data, resulting in a crash (CVE-2015-8776).
      An integer overflow was found in the __hcreate_r() function         (CVE-2015-8778).
      Multiple unbounded stack allocations were found in the catopen()         function (CVE-2015-8779).
    Please review the CVEs referenced below for additional vulnerabilities       that had already been fixed in previous versions of sys-libs/glibc, for       which we have not issued a GLSA before.
  Impact :

    A remote attacker could exploit any application which performs host name       resolution using getaddrinfo() in order to execute arbitrary code or       crash the application. The other vulnerabilities can possibly be       exploited to cause a Denial of Service or leak information.
  Workaround :

    A number of mitigating factors for CVE-2015-7547 have been identified.
      Please review the upstream advisory and references below.

This glibc update fixes a critical privilege escalation problem and the following security and non security issues :

  - bnc#892073: An off-by-one error leading to a heap-based     buffer overflow was found in __gconv_translit_find(). An     exploit that targets the problem is publicly available.
    (CVE-2014-5119)

  - bnc#772242: Replace scope handing with master state

  - bnc#779320: Fix buffer overflow in strcoll     (CVE-2012-4412)

  - bnc#818630: Fall back to localhost if no nameserver     defined

  - bnc#828235: Fix missing character in IBM-943 charset

  - bnc#828637: Fix use of alloca in gaih_inet

  - bnc#834594: Fix readdir_r with long file names     (CVE-2013-4237)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名前	製品	ファミリー	公開日	更新日	深刻度
77439	CentOS 5 / 6 / 7 : glibc (CESA-2014:1110)	Nessus	CentOS Local Security Checks	2014/8/30	2021/1/4	high
77654	Mandriva Linux Security Advisory : glibc (MDVSA-2014:175)	Nessus	Mandriva Local Security Checks	2014/9/12	2021/1/6	high
78583	Fedora 19 : glibc-2.17-21.fc19 (2014-9830)	Nessus	Fedora Local Security Checks	2014/10/20	2021/1/11	high
79539	OracleVM 3.3 : glibc (OVMSA-2014-0017)	Nessus	OracleVM Local Security Checks	2014/11/26	2021/1/4	high
81118	OracleVM 3.2 : glibc (OVMSA-2015-0023) (GHOST)	Nessus	OracleVM Local Security Checks	2015/2/2	2021/1/4	high
81119	OracleVM 2.2 : glibc (OVMSA-2015-0024) (GHOST)	Nessus	OracleVM Local Security Checks	2015/2/2	2021/1/4	high
88822	GLSA-201602-02 : GNU C Library: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2016/2/18	2024/6/18	critical
83634	SUSE SLES10 Security Update : glibc (SUSE-SU-2014:1119-1)	Nessus	SuSE Local Security Checks	2015/5/20	2021/1/19	high

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