Updated postgresql packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team 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.

PostgreSQL is an advanced object-relational database management system (DBMS).

Multiple stack-based buffer overflow flaws were found in the date/time implementation of PostgreSQL. An authenticated database user could provide a specially crafted date/time value that, when processed, could cause PostgreSQL to crash or, potentially, execute arbitrary code with the permissions of the user running PostgreSQL.
(CVE-2014-0063)

Multiple integer overflow flaws, leading to heap-based buffer overflows, were found in various type input functions in PostgreSQL.
An authenticated database user could possibly use these flaws to crash PostgreSQL or, potentially, execute arbitrary code with the permissions of the user running PostgreSQL. (CVE-2014-0064)

Multiple potential buffer overflow flaws were found in PostgreSQL. An authenticated database user could possibly use these flaws to crash PostgreSQL or, potentially, execute arbitrary code with the permissions of the user running PostgreSQL. (CVE-2014-0065)

It was found that granting a SQL role to a database user in a PostgreSQL database without specifying the 'ADMIN' option allowed the grantee to remove other users from their granted role. An authenticated database user could use this flaw to remove a user from a SQL role which they were granted access to. (CVE-2014-0060)

A flaw was found in the validator functions provided by PostgreSQL's procedural languages (PLs). An authenticated database user could possibly use this flaw to escalate their privileges. (CVE-2014-0061)

A race condition was found in the way the CREATE INDEX command performed multiple independent lookups of a table that had to be indexed. An authenticated database user could possibly use this flaw to escalate their privileges. (CVE-2014-0062)

It was found that the chkpass extension of PostgreSQL did not check the return value of the crypt() function. An authenticated database user could possibly use this flaw to crash PostgreSQL via a NULL pointer dereference. (CVE-2014-0066)

Red Hat would like to thank the PostgreSQL project for reporting these issues. Upstream acknowledges Noah Misch as the original reporter of CVE-2014-0060 and CVE-2014-0063, Heikki Linnakangas and Noah Misch as the original reporters of CVE-2014-0064, Peter Eisentraut and Jozef Mlich as the original reporters of CVE-2014-0065, Andres Freund as the original reporter of CVE-2014-0061, Robert Haas and Andres Freund as the original reporters of CVE-2014-0062, and Honza Horak and Bruce Momjian as the original reporters of CVE-2014-0066.

All PostgreSQL users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. If the postgresql service is running, it will be automatically restarted after installing this update.

The remote Oracle Linux 5 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-0249 advisory.

    - related #1065840: CVE-2014-0062
    - fix #1065840: CVE-2014-0060, CVE-2014-0061, CVE-2014-0063, CVE-2014-0064,       CVE-2014-0065

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The PostgreSQL database server was updated to version 9.1.12 to fix various security issues :

  - Granting a role without ADMIN OPTION is supposed to     prevent the grantee from adding or removing members from     the granted role, but this restriction was easily     bypassed by doing SET ROLE first. The security impact is     mostly that a role member can revoke the access of     others, contrary to the wishes of his grantor.
    Unapproved role member additions are a lesser concern,     since an uncooperative role member could provide most of     his rights to others anyway by creating views or     SECURITY DEFINER functions. (CVE-2014-0060)

  - The primary role of PL validator functions is to be     called implicitly during CREATE FUNCTION, but they are     also normal SQL functions that a user can call     explicitly. Calling a validator on a function actually     written in some other language was not checked for and     could be exploited for privilege-escalation purposes.
    The fix involves adding a call to a privilege-checking     function in each validator function. Non-core procedural     languages will also need to make this change to their     own validator functions, if any. (CVE-2014-0061)

  - If the name lookups come to different conclusions due to     concurrent activity, we might perform some parts of the     DDL on a different table than other parts. At least in     the case of CREATE INDEX, this can be used to cause the     permissions checks to be performed against a different     table than the index creation, allowing for a privilege     escalation attack. (CVE-2014-0062)

  - The MAXDATELEN constant was too small for the longest     possible value of type interval, allowing a buffer     overrun in interval_out(). Although the datetime input     functions were more careful about avoiding buffer     overrun, the limit was short enough to cause them to     reject some valid inputs, such as input containing a     very long timezone name. The ecpg library contained     these vulnerabilities along with some of its own.
    (CVE-2014-0063)

  - Several functions, mostly type input functions,     calculated an allocation size without checking for     overflow. If overflow did occur, a too-small buffer     would be allocated and then written past.
    (CVE-2014-0064)

  - Use strlcpy() and related functions to provide a clear     guarantee that fixed-size buffers are not overrun.
    Unlike the preceding items, it is unclear whether these     cases really represent live issues, since in most cases     there appear to be previous constraints on the size of     the input string. Nonetheless it seems prudent to     silence all Coverity warnings of this type.
    (CVE-2014-0065)

  - There are relatively few scenarios in which crypt()     could return NULL, but contrib/chkpass would crash if it     did. One practical case in which this could be an issue     is if libc is configured to refuse to execute unapproved     hashing algorithms (e.g., 'FIPS mode'). (CVE-2014-0066)

  - Since the temporary server started by make check uses     'trust' authentication, another user on the same machine     could connect to it as database superuser, and then     potentially exploit the privileges of the     operating-system user who started the tests. A future     release will probably incorporate changes in the testing     procedure to prevent this risk, but some public     discussion is needed first. So for the moment, just warn     people against using make check when there are untrusted     users on the same machine. (CVE-2014-0067)

The complete list of bugs and more information can be found at:
http://www.postgresql.org/docs/9.1/static/release-9-1-12.html

The remote CentOS host is missing a security update which has been documented in Red Hat advisory RHSA-2014:0221.

The version of PostgreSQL installed on the remote host is 8.4.x prior to 8.4.20, 9.0.x prior to 9.0.16, 9.1.x prior to 9.1.12, 9.2.x prior to 9.2.7 or 9.3.x prior to 9.3.3.  It is, therefore, potentially affected by multiple vulnerabilities :

  - SET ROLE bypasses lack of ADMIN OPTION when granting     roles. (CVE-2014-0060)

  - It is possible to elevate privileges via calls to     validator functions. (CVE-2014-0061)

  - It is possible to elevate privileges via a race     condition in CREATE INDEX. (CVE-2014-0062)

  - Potential buffer overruns exist due to integer overflow     in size calculations. (CVE-2014-0063)

  - Potential buffer overruns exist in datetime     input/output. (CVE-2014-0064)

  - Multiple fixed-size buffers exist that could potentially     be overflowed. (CVE-2014-0065)

  - A potential NULL pointer dereference crash is possible     when crypt(3) returns NULL. (CVE-2014-0066)     
  - Multiple integer overflow vulnerabilities exist in     'hstore_io.c' (CVE-2014-2669)

ID	名前	製品	ファミリー	公開日	更新日	深刻度
72805	CentOS 5 : postgresql (CESA-2014:0249)	Nessus	CentOS Local Security Checks	2014/3/5	2021/1/4	medium
72809	Oracle Linux 5 : postgresql (ELSA-2014-0249)	Nessus	Oracle Linux Local Security Checks	2014/3/5	2025/4/29	critical
73268	SuSE 11.3 Security Update : PostgreSQL 9.1 (SAT Patch Number 8970)	Nessus	SuSE Local Security Checks	2014/3/31	2021/1/19	medium
72865	CentOS 6 : postgresql92-postgresql (CESA-2014:0221)	Nessus	CentOS Local Security Checks	2014/3/7	2021/1/4	medium
72659	PostgreSQL 8.4 < 8.4.20 / 9.0 < 9.0.16 / 9.1 < 9.1.12 / 9.2 < 9.2.7 / 9.3 < 9.3.3 Multiple Vulnerabilities	Nessus	Databases	2014/2/24	2026/10/7	critical

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