#VU44630 Buffer overflow in Quagga - CVE-2011-3327
Vulnerability identifier: #VU44630
Vulnerability risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-119
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Quagga
Server applications /
Other server solutions
Vendor: quagga.net
Description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Heap-based buffer overflow in the ecommunity_ecom2str function in bgp_ecommunity.c in bgpd in Quagga before 0.99.19 allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by sending a crafted BGP UPDATE message over IPv4.
Mitigation
Install update from vendor's website.
Vulnerable software versions
Quagga: 0.95 - 0.99.17
External links
https://code.quagga.net/?p=quagga.git;a=commit;h=94431dbc753171b48b5c6806af97fd690813b00a
https://lists.opensuse.org/opensuse-security-announce/2011-09/msg00027.html
https://lists.opensuse.org/opensuse-security-announce/2011-10/msg00007.html
https://lists.opensuse.org/opensuse-security-announce/2011-10/msg00010.html
https://lists.opensuse.org/opensuse-security-announce/2011-12/msg00009.html
https://rhn.redhat.com/errata/RHSA-2012-1258.html
https://rhn.redhat.com/errata/RHSA-2012-1259.html
https://secunia.com/advisories/46139
https://secunia.com/advisories/46274
https://secunia.com/advisories/48106
https://security.gentoo.org/glsa/glsa-201202-02.xml
https://www.debian.org/security/2011/dsa-2316
https://www.kb.cert.org/vuls/id/668534
https://www.quagga.net/download/quagga-0.99.19.changelog.txt
https://bugzilla.redhat.com/show_bug.cgi?id=738400
https://www.cert.fi/en/reports/2011/vulnerability539178.html
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
