Title: Quagga BGPD Local Denial Of Service Vulnerability
Severity: LOW
Description:
Quagga is a suite of routing applications, written for the FreeBSD, Linux, Solaris, and NetBSD operating systems.
Quagga is prone to a local denial-of-service vulnerability due to a design error in the application. An attacker can exploit this issue by creating an infinite-loop condition within the 'community_str2com()' function. By issuing the 'sh ip bgp' command via the telnet management interface, an attacker can cause the application to consume large amounts of CPU resources.
An attacker may cause the application to crash, thus denying service to legitimate users.
Version 0.98.3 is vulnerable; other versions may also be affected.
Affected Products:
- Debian Linux 3.1.0
- Debian Linux 3.1.0 alpha
- Debian Linux 3.1.0 amd64
- Debian Linux 3.1.0 arm
- Debian Linux 3.1.0 hppa
- Debian Linux 3.1.0 ia-32
- Debian Linux 3.1.0 ia-64
- Debian Linux 3.1.0 m68k
- Debian Linux 3.1.0 mips
- Debian Linux 3.1.0 mipsel
- Debian Linux 3.1.0 ppc
- Debian Linux 3.1.0 s/390
- Debian Linux 3.1.0 sparc
- Gentoo Linux
- Quagga Quagga Routing Software Suite 0.98.3
- RedHat Advanced Workstation for the Itanium Processor 2.1.0
- RedHat Advanced Workstation for the Itanium Processor 2.1.0 IA64
- RedHat Desktop 3.0.0
- RedHat Desktop 4.0.0
- RedHat Enterprise Linux AS 2.1
- RedHat Enterprise Linux AS 2.1 IA64
- RedHat Enterprise Linux AS 3
- RedHat Enterprise Linux AS 4
- RedHat Enterprise Linux ES 3
- RedHat Enterprise Linux ES 4
- RedHat Enterprise Linux WS 3
- RedHat Enterprise Linux WS 4
- SGI ProPack 3.0.0 SP6
- Trustix Secure Linux 3.0.0
- Ubuntu Ubuntu Linux 5.0.0 4 amd64
- Ubuntu Ubuntu Linux 5.0.0 4 i386
- Ubuntu Ubuntu Linux 5.0.0 4 powerpc
- Ubuntu Ubuntu Linux 5.10.0 amd64
- Ubuntu Ubuntu Linux 5.10.0 i386
- Ubuntu Ubuntu Linux 5.10.0 powerpc
References:
- Fredrik Widell: [quagga-dev 4051] quagga locks with command sh ip bgp community 1:*
- Quagga: Quagga Software Suite Homepage
- RedHat: RHSA-2006:0525-5 - quagga security update
- RedHat: RHSA-2006:0533-4 - zebra security update
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