Heap-based buffer overflow in Tor - CVE-2011-0427
Published: January 19, 2011 / Updated: January 12, 2023
Vulnerability identifier: #VU45427
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2011-0427
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in Heap-based buffer overflow in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha. A remote attacker can use unspecified vectors. to trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Tor
Gentoo Linux
Gentoo Linux
How to mitigate CVE-2011-0427
Install update from vendor's website.
External References
- http://archives.seul.org/or/announce/Jan-2011/msg00000.html
- http://blog.torproject.org/blog/tor-02129-released-security-patches
- http://secunia.com/advisories/42905
- http://secunia.com/advisories/42907
- http://www.debian.org/security/2011/dsa-2148
- http://www.securityfocus.com/bid/45832
- http://www.securitytracker.com/id?1024980
- http://www.vupen.com/english/advisories/2011/0131
- http://www.vupen.com/english/advisories/2011/0132
- https://exchange.xforce.ibmcloud.com/vulnerabilities/64748
- https://gitweb.torproject.org/tor.git/blob/refs/heads/release-0.2.2:/ChangeLog