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。

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。

Yet more vulnerabilities have been discovered in the gaim IM client.
Invalid characters in a sent file can cause Gaim to crash on some systems (CVE-2005-2102); a remote AIM or ICQ user can cause a buffer overflow in Gaim by setting an away message containing many AIM substitution strings (CVE-2005-2103); a memory alignment bug in the library used by Gaim to access the Gadu-Gadu network can result in a buffer overflow on non-x86 architecture systems (CVE-2005-2370).

These problems have been corrected in gaim 1.5.0 which is provided with this update.

Several remote vulnerabilities have been discovered in ekg, a console Gadu Gadu client. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2005-2370     It was discovered that memory alignment errors may allow     remote attackers to cause a denial of service on certain     architectures such as sparc. This only affects Debian     Sarge.

  - CVE-2005-2448     It was discovered that several endianess errors may     allow remote attackers to cause a denial of service.
    This only affects Debian Sarge.

  - CVE-2007-1663     It was discovered that a memory leak in handling image     messages may lead to denial of service. This only     affects Debian Etch.

  - CVE-2007-1664     It was discovered that a NULL pointer deference in the     token OCR code may lead to denial of service. This only     affects Debian Etch.

  - CVE-2007-1665     It was discovered that a memory leak in the token OCR     code may lead to denial of service. This only affects     Debian Etch.

Wojtek Kaniewski reports :

Multiple vulnerabilities have been found in libgadu, a library for handling Gadu-Gadu instant messaging protocol. It is a part of ekg, a Gadu-Gadu client, but is widely used in other clients. Also some of the user contributed scripts were found to behave in an insecure manner.

- integer overflow in libgadu (CVE-2005-1852) that could be triggered by an incomming message and lead to application crash and/or remote code execution

- insecure file creation (CVE-2005-1850) and shell command injection (CVE-2005-1851) in other user contributed scripts (discovered by Marcin Owsiany and Wojtek Kaniewski)

- several signedness errors in libgadu that could be triggered by an incomming network data or an application passing invalid user input to the library

- memory alignment errors in libgadu that could be triggered by an incomming message and lead to bus errors on architectures like SPARC

- endianness errors in libgadu that could cause invalid behaviour of applications on big-endian architectures

Szymon Zygmunt and Michal Bartoszkiewicz discovered a memory alignment error in libgadu (from ekg, console Gadu Gadu client, an instant messaging program) which is included in gaim, a multi-protocol instant messaging client, as well. This can not be exploited on the x86 architecture but on others, e.g. on Sparc and lead to a bus error, in other words a denial of service.

The old stable distribution (woody) does not seem to be affected by this problem.

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。

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.

An updated gaim package that fixes multiple security issues is now available.

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

Gaim is an Internet Messaging client.

A heap based buffer overflow issue was discovered in the way Gaim processes away messages. A remote attacker could send a specially crafted away message to a Gaim user logged into AIM or ICQ that could result in arbitrary code execution. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-2103 to this issue.

Daniel Atallah discovered a denial of service issue in Gaim. A remote attacker could attempt to upload a file with a specially crafted name to a user logged into AIM or ICQ, causing Gaim to crash. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-2102 to this issue.

A denial of service bug was found in Gaim's Gadu Gadu protocol handler. A remote attacker could send a specially crafted message to a Gaim user logged into Gadu Gadu, causing Gaim to crash. Please note that this issue only affects PPC and IBM S/390 systems running Gaim.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-2370 to this issue.

Users of gaim are advised to upgrade to this updated package, which contains backported patches and is not vulnerable to these issues.

Marcin Owsiany and Wojtek Kaniewski discovered that some contributed scripts (contrib/ekgh, contrib/ekgnv.sh, and contrib/getekg.sh) in the ekg package created temporary files in an insecure way, which allowed exploitation of a race condition to create or overwrite files with the privileges of the user invoking the script. (CAN-2005-1850)

Marcin Owsiany and Wojtek Kaniewski discovered a shell command injection vulnerability in a contributed utility (contrib/scripts/ekgbot-pre1.py). By sending specially crafted content to the bot, an attacker could exploit this to execute arbitrary code with the privileges of the user running ekgbot. (CAN-2005-1851)

Marcin Slusarz discovered an integer overflow in the Gadu library. By sending a specially crafted incoming message, a remote attacker could execute arbitrary code with the privileges of the application using libgadu. (CAN-2005-1852)

Eric Romang discovered that another contributed script (contrib/scripts/linki.py) created temporary files in an insecure way, which allowed exploitation of a race condition to create or overwrite files with the privileges of the user invoking the script.
(CAN-2005-1916)

Grzegorz Jaskiewicz discovered several integer overflows in the Gadu library. A remote attacker could exploit this to crash the Gadu client application or even execute arbitrary code with the privileges of the user by sending specially crafted messages. (CAN-2005-2369)

Szymon Zygmunt and Michal Bartoszkiewicz discovered a memory alignment error in the Gadu library. By sending specially crafted messages, a remote attacker could crash the application using the library. (CAN-2005-2370)

Marcin Slusarz discovered that the Gadu library did not properly handle endianess conversion in some cases. This caused invalid behavior on big endian architectures. The only affected supported architecture is powerpc. (CAN-2005-2448).

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

The remote Redhat Enterprise Linux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2005:639 advisory.

    The kdenetwork package contains networking applications for the K Desktop     Environment.  Kopete is a KDE instant messenger which supports a number of     protocols including ICQ, MSN, Yahoo, Jabber, and Gadu-Gadu.

    Multiple integer overflow flaws were found in the way Kopete processes     Gadu-Gadu messages. A remote attacker could send a specially crafted     Gadu-Gadu message which would cause Kopete to crash or possibly execute     arbitrary code. The Common Vulnerabilities and Exposures project     assigned the name CAN-2005-1852 to this issue.

    In order to be affected by this issue, a user would need to have registered     with Gadu-Gadu and be signed in to the Gadu-Gadu server in order to receive     a malicious message.  In addition, Red Hat believes that the Exec-shield     technology (enabled by default in Red Hat Enterprise Linux 4) would block     attempts to remotely exploit this vulnerability.

    Note that this issue does not affect Red Hat Enterprise Linux 2.1 or 3.

    Users of Kopete should update to these packages which contain a     patch to correct this issue.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise 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.

Updated kdenetwork packages to correct a security flaw in Kopete are now available for Red Hat Enterprise Linux 4.

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

The kdenetwork package contains networking applications for the K Desktop Environment. Kopete is a KDE instant messenger which supports a number of protocols including ICQ, MSN, Yahoo, Jabber, and Gadu-Gadu.

Multiple integer overflow flaws were found in the way Kopete processes Gadu-Gadu messages. A remote attacker could send a specially crafted Gadu-Gadu message which would cause Kopete to crash or possibly execute arbitrary code. The Common Vulnerabilities and Exposures project assigned the name CVE-2005-1852 to this issue.

In order to be affected by this issue, a user would need to have registered with Gadu-Gadu and be signed in to the Gadu-Gadu server in order to receive a malicious message. In addition, Red Hat believes that the Exec-shield technology (enabled by default in Red Hat Enterprise Linux 4) would block attempts to remotely exploit this vulnerability.

Note that this issue does not affect Red Hat Enterprise Linux 2.1 or 3.

Users of Kopete should update to these packages which contain a patch to correct this issue.

Several problems have been discovered in libgadu which is also part of centericq, a text-mode multi-protocol instant messenger client. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CAN-2005-2369     Multiple integer signedness errors may allow remote     attackers to cause a denial of service or execute     arbitrary code.

  - CAN-2005-2370

    Memory alignment errors may allows remote attackers to     cause a denial of service on certain architectures such     as sparc.

  - CAN-2005-2448

    Several endianess errors may allow remote attackers to     cause a denial of service.

New gaim packages are available for Slackware 9.0, 9.1, 10.0, 10.1, and -current to fix some security issues. including: AIM/ICQ away message buffer overflow AIM/ICQ non-UTF-8 filename crash Gadu-Gadu memory alignment bug Sites that use GAIM should upgrade to the new version.

Daniel Atallah discovered a Denial of Service vulnerability in the file transfer handler of OSCAR (the module that handles various instant messaging protocols like ICQ). A remote attacker could crash the Gaim client of an user by attempting to send him a file with a name that contains invalid UTF-8 characters. (CAN-2005-2102)

It was found that specially crafted 'away' messages triggered a buffer overflow. A remote attacker could exploit this to crash the Gaim client or possibly even execute arbitrary code with the permissions of the Gaim user. (CAN-2005-2103)

Szymon Zygmunt and Michal Bartoszkiewicz discovered a memory alignment error in the Gadu library, which was fixed in USN-162-1.
However, it was discovered that Gaim contains a copy of the vulnerable code. By sending specially crafted messages over the Gadu protocol, a remote attacker could crash Gaim. (CAN-2005-2370).

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

The remote host seems to be running Gaim, a popular open-source, multi-protocol instant messenger. It is reported that this version of Gaim is vulnerable to several remote flaws.  An attacker exploiting these flaws would be able to create a Denial of Service (DoS) condition or possibly overflow system memory and execute arbitrary code.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
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
57528	Debian DSA-773-1：amd64 - 多个漏洞	Nessus	Debian Local Security Checks	2012/1/12	2021/1/4	critical
19896	Mandrake Linux Security Advisory : gaim (MDKSA-2005:139)	Nessus	Mandriva Local Security Checks	2005/10/5	2021/1/6	high
25584	Debian DSA-1318-1 : ekg - several vulnerabilities	Nessus	Debian Local Security Checks	2007/6/27	2021/1/4	medium
21414	FreeBSD : libgadu -- multiple vulnerabilities (3b4a6982-0b24-11da-bc08-0001020eed82)	Nessus	FreeBSD Local Security Checks	2006/5/13	2021/1/6	critical
19318	Debian DSA-769-1 : gaim - memory alignment bug	Nessus	Debian Local Security Checks	2005/7/31	2021/1/4	medium
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 - several vulnerabilities	Nessus	Debian Local Security Checks	2012/1/12	2021/1/4	critical
19423	RHEL 3 / 4 : gaim (RHSA-2005:627)	Nessus	Red Hat Local Security Checks	2005/8/12	2021/1/14	high
20568	Ubuntu 5.04 : ekg vulnerabilities (USN-162-1)	Nessus	Ubuntu Local Security Checks	2006/1/15	2021/1/19	critical
19286	RHEL 4 : kdenetwork (RHSA-2005:639)	Nessus	Red Hat Local Security Checks	2005/7/22	2024/11/4	high
21846	CentOS 3 / 4 : gaim (CESA-2005:627)	Nessus	CentOS Local Security Checks	2006/7/3	2021/1/4	high
21954	CentOS 4 : kdenetwork (CESA-2005:639)	Nessus	CentOS Local Security Checks	2006/7/5	2021/1/4	high
19709	Debian DSA-813-1 : centericq - several vulnerabilities	Nessus	Debian Local Security Checks	2005/9/17	2021/1/4	high
19860	Slackware 10.0 / 10.1 / 9.0 / 9.1 / current : gaim (SSA:2005-242-03)	Nessus	Slackware Local Security Checks	2005/10/5	2021/1/14	high
20574	Ubuntu 4.10 / 5.04 : gaim vulnerabilities (USN-168-1)	Nessus	Ubuntu Local Security Checks	2006/1/15	2021/1/19	high
3160	Gaim < 1.3.2 Multiple Vulnerabilities	Nessus Network Monitor	Internet Messengers	2005/8/10	2019/3/6	medium

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