A denial of service flaw was found in the way the ospfd daemon of the Quagga routing suire processes malformed Hello packets (not complete Hello packets of Hello packets with invalid OSPFv2 header type). A configured OSPF peer, could use this flaw to cause the master OSPF daemon (ospfd) to crash.
This issue affects the versions of the quagga package, as shipped with Red Hat Enterprise Linux 4, 5, and 6. -- This issue affects the versions of the quagga package, as shipped with Fedora release of 14 and 15.
Created attachment 523210 [details] Upstream CVE-2011-3325 patch #1 for Quagga-master branch
Created attachment 523212 [details] Upstream CVE-2011-3325 patch #2 for Quagga-master branch
Public now via: [1] https://www.cert.fi/en/reports/2011/vulnerability539178.html
Created quagga tracking bugs for this issue Affects: fedora-all [bug 741343]
It was found that original upstream patch for CVE-2011-3325 part 2 (ospf pkt type segv): [1] http://code.quagga.net/?p=quagga.git;a=commit;h=717750433839762d23a5f8d88fe0b4d57c8d490a introduced an regression, which has been corrected in Quagga-v0.99.20 release, via the following commit: [2] http://code.quagga.net/?p=quagga.git;a=commitdiff;h=3aad46bdaa0a2700e43252904b9481750c8cb45d
quagga-0.99.20-2.fc14 has been pushed to the Fedora 14 stable repository. If problems still persist, please make note of it in this bug report.
quagga-0.99.20-2.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.
quagga-0.99.20-2.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
This issue has been addressed in following products: Red Hat Enterprise Linux 6 Via RHSA-2012:1259 https://rhn.redhat.com/errata/RHSA-2012-1259.html
This issue has been addressed in following products: Red Hat Enterprise Linux 5 Via RHSA-2012:1258 https://rhn.redhat.com/errata/RHSA-2012-1258.html
Acknowledgements: Red Hat would like to thank CERT-FI for reporting this issue. CERT-FI acknowledges Riku Hietamäki, Tuomo Untinen and Jukka Taimisto of the Codenomicon CROSS project as the original reporters.