Updated pidgin packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5 and 6.

The Red Hat Security Response Team has rated this update as having moderate 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.

Pidgin is an instant messaging program which can log in to multiple accounts on multiple instant messaging networks simultaneously.

A heap-based buffer overflow flaw was found in the way Pidgin processed certain HTTP responses. A malicious server could send a specially crafted HTTP response, causing Pidgin to crash or potentially execute arbitrary code with the permissions of the user running Pidgin. (CVE-2013-6485)

Multiple heap-based buffer overflow flaws were found in several protocol plug-ins in Pidgin (Gadu-Gadu, MXit, SIMPLE). A malicious server could send a specially crafted message, causing Pidgin to crash or potentially execute arbitrary code with the permissions of the user running Pidgin. (CVE-2013-6487, CVE-2013-6489, CVE-2013-6490)

Multiple denial of service flaws were found in several protocol plug-ins in Pidgin (Yahoo!, XMPP, MSN, stun, IRC). A remote attacker could use these flaws to crash Pidgin by sending a specially crafted message. (CVE-2012-6152, CVE-2013-6477, CVE-2013-6481, CVE-2013-6482, CVE-2013-6484, CVE-2014-0020)

It was found that the Pidgin XMPP protocol plug-in did not verify the origin of 'iq' replies. A remote attacker could use this flaw to spoof an 'iq' reply, which could lead to injection of fake data or cause Pidgin to crash via a NULL pointer dereference. (CVE-2013-6483)

A flaw was found in the way Pidgin parsed certain HTTP response headers. A remote attacker could use this flaw to crash Pidgin via a specially crafted HTTP response header. (CVE-2013-6479)

It was found that Pidgin crashed when a mouse pointer was hovered over a long URL. A remote attacker could use this flaw to crash Pidgin by sending a message containing a long URL string. (CVE-2013-6478)

Red Hat would like to thank the Pidgin project for reporting these issues. Upstream acknowledges Thijs Alkemade, Robert Vehse, Jaime Breva Ribes, Jacob Appelbaum of the Tor Project, Daniel Atallah, Fabian Yamaguchi and Christian Wressnegger of the University of Goettingen, Matt Jones of Volvent, and Yves Younan, Ryan Pentney, and Pawel Janic of Sourcefire VRT as the original reporters of these issues.

All pidgin users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. Pidgin must be restarted for this update to take effect.

Update to 2.10.9

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.

Thijs Alkemade and Robert Vehse discovered that Pidgin incorrectly handled the Yahoo! protocol. A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service.
(CVE-2012-6152)

Jaime Breva Ribes discovered that Pidgin incorrectly handled the XMPP protocol. A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service. (CVE-2013-6477)

It was discovered that Pidgin incorrecly handled long URLs. A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service. (CVE-2013-6478)

Jacob Appelbaum discovered that Pidgin incorrectly handled certain HTTP responses. A malicious remote server or a man in the middle could use this issue to cause Pidgin to crash, resulting in a denial of service. (CVE-2013-6479)

Daniel Atallah discovered that Pidgin incorrectly handled the Yahoo! protocol. A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service. (CVE-2013-6481)

Fabian Yamaguchi and Christian Wressnegger discovered that Pidgin incorrectly handled the MSN protocol. A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service.
(CVE-2013-6482)

Fabian Yamaguchi and Christian Wressnegger discovered that Pidgin incorrectly handled XMPP iq replies. A remote attacker could use this issue to spoof messages. (CVE-2013-6483)

It was discovered that Pidgin incorrectly handled STUN server responses. A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service. (CVE-2013-6484)

Matt Jones discovered that Pidgin incorrectly handled certain chunked HTTP responses. A malicious remote server or a man in the middle could use this issue to cause Pidgin to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2013-6485)

Yves Younan and Ryan Pentney discovered that Pidgin incorrectly handled certain Gadu-Gadu HTTP messages. A malicious remote server or a man in the middle could use this issue to cause Pidgin to crash, resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2013-6487)

Yves Younan and Pawel Janic discovered that Pidgin incorrectly handled MXit emoticons. A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2013-6489)

Yves Younan discovered that Pidgin incorrectly handled SIMPLE headers.
A remote attacker could use this issue to cause Pidgin to crash, resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2013-6490)

Daniel Atallah discovered that Pidgin incorrectly handled IRC argument parsing. A malicious remote server or a man in the middle could use this issue to cause Pidgin to crash, resulting in a denial of service.
(CVE-2014-0020).

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 is affected by the vulnerability described in GLSA-201405-22 (Pidgin: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Pidgin. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could possibly execute arbitrary code with the       privileges of the Pidgin process, cause a Denial of Service condition,       overwrite files, or spoof traffic.
  Workaround :

    There is no known workaround at this time.

The pidgin Instant Messenger has been updated to fix various security issues :

  - Remotely triggerable crash in IRC argument parsing.
    (CVE-2014-0020)

  - Buffer overflow in SIMPLE header parsing.
    (CVE-2013-6490)

  - Buffer overflow in MXit emoticon parsing.
    (CVE-2013-6489)

  - Buffer overflow in Gadu-Gadu HTTP parsing.
    (CVE-2013-6487)

  - Pidgin uses clickable links to untrusted executables.
    (CVE-2013-6486)

  - Buffer overflow parsing chunked HTTP responses.
    (CVE-2013-6485)

  - Crash reading response from STUN server. (CVE-2013-6484)

  - XMPP doesn't verify 'from' on some iq replies.
    (CVE-2013-6483)

  - NULL pointer dereference parsing SOAP data in MSN.
    (CVE-2013-6482)

  - NULL pointer dereference parsing OIM data in MSN.
    (CVE-2013-6482)

  - NULL pointer dereference parsing headers in MSN.
    (CVE-2013-6482)

  - Remote crash reading Yahoo! P2P message. (CVE-2013-6481)

  - Remote crash parsing HTTP responses. (CVE-2013-6479)

  - Crash when hovering pointer over a long URL.
    (CVE-2013-6478)

  - Crash handling bad XMPP timestamp. (CVE-2013-6477)

  - Yahoo! remote crash from incorrect character encoding.
    (CVE-2012-6152)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
72352	CentOS 5 / 6 : pidgin (CESA-2014:0139)	Nessus	CentOS Local Security Checks	2014/2/6	2021/1/4	critical
72359	Fedora 20 : pidgin-2.10.9-1.fc20 (2014-2013)	Nessus	Fedora Local Security Checks	2014/2/6	2021/1/11	critical
72386	Ubuntu 12.04 LTS / 12.10 / 13.10 : pidgin vulnerabilities (USN-2100-1)	Nessus	Ubuntu Local Security Checks	2014/2/7	2021/1/19	critical
72519	Fedora 19 : pidgin-2.10.9-1.fc19 (2014-1999)	Nessus	Fedora Local Security Checks	2014/2/17	2021/1/11	critical
74064	GLSA-201405-22 : Pidgin: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	2014/5/19	2021/1/6	critical
74173	SuSE 11.3 Security Update : finch (SAT Patch Number 9213)	Nessus	SuSE Local Security Checks	2014/5/24	2021/1/19	critical

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