Ubuntu 14.04 LTS / 16.04 LTS : harfbuzz vulnerabilities (USN-3067-1)

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


Synopsis :

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

Description :

Kostya Serebryany discovered that HarfBuzz incorrectly handled memory.
A remote attacker could use this issue to cause HarfBuzz to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2015-8947)

It was discovered that HarfBuzz incorrectly handled certain length
checks. A remote attacker could use this issue to cause HarfBuzz to
crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only applied to Ubuntu 16.04 LTS. (CVE-2016-2052).

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 libharfbuzz0b package.

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)
CVSS Temporal Score : 5.9
(CVSS2#E:POC/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 93106 ()

Bugtraq ID:

CVE ID: CVE-2015-8947
CVE-2016-2052

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