Ubuntu 10.04 LTS / 10.10 / 11.04 : pidgin vulnerabilities (USN-1273-1)

Ubuntu Security Notice (C) 2011-2013 Canonical, Inc. / NASL script (C) 2011-2013 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Marius Wachtler discovered that Pidgin incorrectly handled malformed
YMSG messages in the Yahoo! protocol handler. A remote attacker could
send a specially crafted message and cause Pidgin to crash, leading to
a denial of service. This issue only affected Ubuntu 10.04 LTS and
10.10. (CVE-2011-1091)

Marius Wachtler discovered that Pidgin incorrectly handled HTTP 100
responses in the MSN protocol handler. A remote attacker could send a
specially crafted message and cause Pidgin to crash, leading to a
denial of service. (CVE-2011-3184)

Diego Bauche Madero discovered that Pidgin incorrectly handled UTF-8
sequences in the SILC protocol handler. A remote attacker could send a
specially crafted message and cause Pidgin to crash, leading to a
denial of service. (CVE-2011-3594).

Solution :

Update the affected pidgin package.

Risk factor :

Medium / CVSS Base Score : 4.3
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.2
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 56915 ()

Bugtraq ID: 46837
49268
49912

CVE ID: CVE-2011-1091
CVE-2011-3184
CVE-2011-3594