Debian Security Advisory

DSA-1788-1 quagga -- improper assertion

Date Reported:
04 May 2009
Affected Packages:
quagga
Vulnerable:
Yes
Security database references:
In the Debian bugtracking system: Bug 526311.
More information:

It was discovered that Quagga, an IP routing daemon, could no longer process the Internet routing table due to broken handling of multiple 4-byte AS numbers in an AS path. If such a prefix is received, the BGP daemon crashes with an assert failure, leading to a denial of service.

The old stable distribution (etch) is not affected by this issue.

For the stable distribution (lenny), this problem has been fixed in version 0.99.10-1lenny2.

For the unstable distribution (sid), this problem has been fixed in version 0.99.11-2.

We recommend that you upgrade your quagga package.

Fixed in:

Debian GNU/Linux 5.0 (lenny)

Source:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10.orig.tar.gz
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2.diff.gz
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2.dsc
Architecture-independent component:
http://security.debian.org/pool/updates/main/q/quagga/quagga-doc_0.99.10-1lenny2_all.deb
Alpha:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_alpha.deb
AMD64:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_amd64.deb
ARM:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_arm.deb
HP Precision:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_hppa.deb
Intel IA-32:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_i386.deb
Little-endian MIPS:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_mipsel.deb
PowerPC:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_powerpc.deb
IBM S/390:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_s390.deb
Sun Sparc:
http://security.debian.org/pool/updates/main/q/quagga/quagga_0.99.10-1lenny2_sparc.deb

MD5 checksums of the listed files are available in the original advisory.