Ubuntu 12.04 LTS / 14.04 LTS / 15.04 / 15.10 : libxml2 vulnerabilities (USN-2834-1)

Ubuntu Security Notice (C) 2015-2016 Canonical, Inc. / NASL script (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

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

Description :

Kostya Serebryany discovered that libxml2 incorrectly handled certain
malformed documents. If a user or automated system were tricked into
opening a specially crafted document, an attacker could possibly cause
libxml2 to crash, resulting in a denial of service. (CVE-2015-5312,
CVE-2015-7497, CVE-2015-7498, CVE-2015-7499,CVE-2015-7500)

Hugh Davenport discovered that libxml2 incorrectly handled certain
malformed documents. If a user or automated system were tricked into
opening a specially crafted document, an attacker could possibly cause
libxml2 to crash, resulting in a denial of service. (CVE-2015-8241,
CVE-2015-8242)

Hanno Boeck discovered that libxml2 incorrectly handled certain
malformed documents. If a user or automated system were tricked into
opening a specially crafted document, an attacker could possibly cause
libxml2 to crash, resulting in a denial of service. This issue only
applied to Ubuntu 12.04 LTS, Ubuntu 14.04 LTS and Ubuntu 15.04.
(CVE-2015-8317).

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.

Solution :

Update the affected libxml2 package.

Risk factor :

High / CVSS Base Score : 7.1
(CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 5.6
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 87369 ()

Bugtraq ID:

CVE ID: CVE-2015-5312
CVE-2015-7497
CVE-2015-7498
CVE-2015-7499
CVE-2015-7500
CVE-2015-8241
CVE-2015-8242
CVE-2015-8317

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