Debian Security Advisory DSA 3119-1 (libevent - security update)

Published: 2015-01-05 23:00:00
CVE Author: NIST National Vulnerability Database (NVD)

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type:
Vendor Patch

Affected Versions:
libevent on Debian Linux

Recommendations:
For the stable distribution (wheezy), this problem has been fixed in version 2.0.19-stable-3+deb7u1. For the upcoming stable distribution (jessie) and the unstable distribution (sid), this problem will be fixed soon. We recommend that you upgrade your libevent Linux Distribution Packages.

Summary:
Andrew Bartlett of Catalyst reported a defect affecting certain applications using the Libevent evbuffer API. This defect leaves applications which pass insanely large inputs to evbuffers open to a possible heap overflow or infinite loop. In order to exploit this flaw, an attacker needs to be able to find a way to provoke the program into trying to make a buffer chunk larger than what will fit into a single size_t or off_t.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

Detection Type:
Linux Distribution Package

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2014-6272

References:

http://www.debian.org/security/2015/dsa-3119.html

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Severity
High
CVSS Score
7.5

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