Debian DSA-3119-1 : libevent - security update

high Nessus Plugin ID 80393

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Synopsis

The remote Debian host is missing a security-related update.

Description

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.

Solution

Upgrade the libevent packages.

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.

Plugin Details

Severity: High

ID: 80393

File Name: debian_DSA-3119.nasl

Version: 1.9

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 1/7/2015

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libevent, cpe:/o:debian:debian_linux:7.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 1/6/2015

Reference Information

CVE: CVE-2014-6272, CVE-2015-6525

DSA: 3119

Detections

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