-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-2197-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/security/ Florian Weimer March 21, 2011 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : quagga Vulnerability : denial of service Problem type : remote Debian-specific: no CVE ID : CVE-2010-1674 CVE-2010-1675 It has been discovered that the Quagga routing daemon contains two denial-of-service vulnerabilities in its BGP implementation: CVE-2010-1674 A crafted Extended Communities attribute triggers a null pointer dereference which causes the BGP daemon to crash. The crafted attributes are not propagated by the Internet core, so only explicitly configured direct peers are able to exploit this vulnerability in typical configurations. CVE-2010-1675 The BGP daemon resets BGP sessions when it encounters malformed AS_PATHLIMIT attributes, introducing a distributed BGP session reset vulnerability which disrupts packet forwarding. Such malformed attributes are propagated by the Internet core, and exploitation of this vulnerability is not restricted to directly configured BGP peers. This security update removes AS_PATHLIMIT processing from the BGP implementation, preserving the configuration statements for backwards compatibility. (Standardization of this BGP extension was abandoned long ago.) For the oldstable distribution (lenny), these problems have been fixed in version 0.99.10-1lenny5. For the stable distribution (squeeze), these problems have been fixed in version 0.99.17-2+squeeze2. For the testing distribution (wheezy) and the unstable distribution (sid), these problems will fixed soon. We recommend that you upgrade your quagga packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
Debian: DSA-2197-1: quagga security update
It has been discovered that the Quagga routing daemon contains two denial-of-service vulnerabilities in its BGP implementation: CVE-2010-1674
