'infamous42md' discovered that dhcpcd, a DHCP client for automatically configuring IPv4 networking, can be tricked into reading past the end of the supplied DHCP buffer which could lead to the daemon crashing.

The remote host is affected by the vulnerability described in GLSA-200507-16 (dhcpcd: Denial of Service vulnerability)

    infamous42md discovered that dhcpcd can be tricked to read past     the end of the supplied DHCP buffer. As a result, this might lead to a     crash of the daemon.
  Impact :

    With a malicious DHCP server an attacker could cause a Denial of     Service by crashing the DHCP client.
  Workaround :

    There is no known workaround at this time.

このアドバイザリは、安定版（stable）amd64 ディストリビューションのセキュリティサポートを追加します。
sarge リリース以降のすべてのセキュリティ更新がカバーされます。これには、まだ正式ではない amd64 ポートに対する更新済みパッケージがありませんでした。今後のセキュリティアドバイザリには、このポートの更新も含まれる予定です。

An updated dhcpcd package that fixes a denial of service issue is now available.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The dhcpcd package includes a DHCP client daemon.

An out of bounds memory read bug was found in dhcpcd. A malicious user on the local network could send a specially crafted DHCP packet to the client causing it to crash. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-1848 to this issue.

Users of dhcpcd should update to this erratum package, which contains a patch that resolves this issue.

'infamous42md' discovered that the dhcpcd DHCP client could be tricked into reading past the end of the supplied DHCP buffer, which could lead to the daemon crashing.

The updated packages have been patched to address this issue.

New dhcpcd packages are available for Slackware 8.1, 9.0, 9.1, 10.0, 10.1, and -current to fix a minor security issue. The dhcpcd daemon can be tricked into reading past the end of the DHCP buffer by a malicious DHCP server, which causes the dhcpcd daemon to crash and results in a denial of service. Of course, a malicious DHCP server could simply give you an IP address that wouldn't work, too, such as 127.0.0.1, but since people have been asking about this issue, here's a fix, and that's the extent of the impact. In other words, very little real impact. Even less detail about this issue may be found in the Common Vulnerabilities and Exposures (CVE) database:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-1848

This advisory adds security support for the stable amd64 distribution.
It covers all security updates since the release of sarge, which were missing updated packages for the not yet official amd64 port. Future security advisories will include updates for this port as well.

此公告會新增對穩定之 amd64 發行版本的安全性支援。
其中包含自 sarge 發佈以來的所有安全性更新，但缺少非官方 amd64 連接埠的更新版套件。之後的安全性公告也將包含此連接埠的更新。

此公告添加了对稳定 amd64 发行版本的安全支持。
它涵盖自 sarge 发布以来的所有安全更新，该版本缺少针对尚不是官方 amd64 端口的更新后的程序包。未来的安全公告将也包含此端口的更新。

ID	名前	製品	ファミリー	公開日	更新日	深刻度
18665	Debian DSA-750-1 : dhcpcd - out-of-bound memory access	Nessus	Debian Local Security Checks	2005/7/11	2021/1/4	medium
19212	GLSA-200507-16 : dhcpcd: Denial of Service vulnerability	Nessus	Gentoo Local Security Checks	2005/7/16	2021/1/6	medium
57528	Debian DSA-773-1：amd64 - いくつかの脆弱性	Nessus	Debian Local Security Checks	2012/1/12	2021/1/4	critical
19331	RHEL 2.1 : dhcpcd (RHSA-2005:603)	Nessus	Red Hat Local Security Checks	2005/7/31	2021/1/14	medium
19191	Mandrake Linux Security Advisory : dhcpcd (MDKSA-2005:117)	Nessus	Mandriva Local Security Checks	2005/7/13	2021/1/6	medium
19864	Slackware 10.0 / 10.1 / 8.1 / 9.0 / 9.1 / current : dhcpcd DoS (SSA:2005-255-01)	Nessus	Slackware Local Security Checks	2005/10/5	2021/1/14	medium
57528	Debian DSA-773-1 : amd64 - several vulnerabilities	Nessus	Debian Local Security Checks	2012/1/12	2021/1/4	critical
57528	Debian DSA-773-1 : amd64 - 數個弱點	Nessus	Debian Local Security Checks	2012/1/12	2021/1/4	critical
57528	Debian DSA-773-1：amd64 - 多个漏洞	Nessus	Debian Local Security Checks	2012/1/12	2021/1/4	critical

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