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Debian DSA-2459-2 : quagga - several vulnerabilities

medium Nessus Plugin ID 58883

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Synopsis

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

Description

Several vulnerabilities have been discovered in Quagga, a routing daemon.

 - CVE-2012-0249 A buffer overflow in the ospf_ls_upd_list_lsa function in the OSPFv2 implementation allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a Link State Update (aka LS Update) packet that is smaller than the length specified in its header.

 - CVE-2012-0250 A buffer overflow in the OSPFv2 implementation allows remote attackers to cause a denial of service (daemon crash) via a Link State Update (aka LS Update) packet containing a network-LSA link-state advertisement for which the data-structure length is smaller than the value in the Length header field.

 - CVE-2012-0255 The BGP implementation does not properly use message buffers for OPEN messages, which allows remote attackers impersonating a configured BGP peer to cause a denial of service (assertion failure and daemon exit) via a message associated with a malformed AS4 capability.

This security update upgrades the quagga package to the most recent upstream release. This release includes other corrections, such as hardening against unknown BGP path attributes.

Solution

Upgrade the quagga packages.

For the stable distribution (squeeze), these problems have been fixed in version 0.99.20.1-0+squeeze2.

See Also

https://security-tracker.debian.org/tracker/CVE-2012-0249

https://security-tracker.debian.org/tracker/CVE-2012-0250

https://security-tracker.debian.org/tracker/CVE-2012-0255

https://packages.debian.org/source/squeeze/quagga

https://www.debian.org/security/2012/dsa-2459

Plugin Details

Severity: Medium

ID: 58883

File Name: debian_DSA-2459.nasl

Version: 1.10

Type: local

Agent: unix

Published: 4/27/2012

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.4

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:quagga, cpe:/o:debian:debian_linux:6.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/4/2012

Reference Information

CVE: CVE-2012-0249, CVE-2012-0250, CVE-2012-0255

BID: 52531

DSA: 2459