SB2012040503 - Multiple vulnerabilities in quagga.net Quagga 

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Main Vulnerability Database SB2012040503

SB2012040503 - Multiple vulnerabilities in quagga.net Quagga

Published: April 5, 2012 Updated: August 11, 2020

Security Bulletin ID SB2012040503
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2012-0249)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Buffer overflow in the ospf_ls_upd_list_lsa function in ospf_packet.c in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 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.


2) Buffer overflow (CVE-ID: CVE-2012-0250)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Buffer overflow in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 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.


3) Buffer overflow (CVE-ID: CVE-2012-0255)

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The BGP implementation in bgpd in Quagga before 0.99.20.1 does not properly use message buffers for OPEN messages, which allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a message associated with a malformed Four-octet AS Number Capability (aka AS4 capability).


Remediation

Install update from vendor's website.

References