Ubuntu 12.04 LTS / 14.04 LTS / 15.10 / 16.04 LTS : libarchive vulnerabilities (USN-3033-1)

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


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

Hanno Bock discovered that libarchive contained multiple security
issues when processing certain malformed archive files. A remote
attacker could use this issue to cause libarchive to crash, resulting
in a denial of service, or possibly execute arbitrary code.
(CVE-2015-8916, CVE-2015-8917 CVE-2015-8919, CVE-2015-8920,
CVE-2015-8921, CVE-2015-8922, CVE-2015-8923, CVE-2015-8924,
CVE-2015-8925, CVE-2015-8926, CVE-2015-8928, CVE-2015-8930,
CVE-2015-8931, CVE-2015-8932, CVE-2015-8933, CVE-2015-8934,
CVE-2016-5844)

Marcin 'Icewall' Noga discovered that libarchive contained multiple
security issues when processing certain malformed archive files. A
remote attacker could use this issue to cause libarchive to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2016-4300, CVE-2016-4302)

It was discovered that libarchive incorrectly handled memory
allocation with large cpio symlinks. A remote attacker could use this
issue to possibly cause libarchive to crash, resulting in a denial of
service. (CVE-2016-4809).

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 libarchive12 and / or libarchive13 packages.

Risk factor :

Medium / CVSS Base Score : 6.8
(CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.3
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

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