Reachable Assertion in Quagga - CVE-2009-1572
Published: June 25, 2020
Vulnerability identifier: #VU29271
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2009-1572
CWE-ID: CWE-617
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion within BGP daemon (bgpd) when processing ASN elements whose string representation is longer than expected in the AS path. A remote attacker can pass specially crafted AS path to the service and perform a denial of service (DoS) attack.
Affected software
Quagga
How to mitigate CVE-2009-1572
Install updates from vendor's website.
Quagga - update to 0.99.12
External References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=526311
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html
- http://marc.info/?l=quagga-dev&m=123364779626078&w=2
- http://secunia.com/advisories/34999
- http://secunia.com/advisories/35061
- http://secunia.com/advisories/35203
- http://secunia.com/advisories/35685
- http://thread.gmane.org/gmane.network.quagga.devel/6513
- http://www.debian.org/security/2009/dsa-1788
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:109
- http://www.openwall.com/lists/oss-security/2009/05/01/1
- http://www.openwall.com/lists/oss-security/2009/05/01/2
- http://www.osvdb.org/54200
- http://www.securityfocus.com/bid/34817
- http://www.securitytracker.com/id?1022164
- http://www.ubuntu.com/usn/usn-775-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/50317
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01037.html
- https://www.redhat.com/archives/fedora-package-announce/2009-May/msg01107.html