CVE-2011-2778 Memory corruption in n/a
Remote attackers can cause denial of service or execute arbitrary code via heap-based buffer overflows in Tor's SOCKS connection handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-2778?
CVE-2011-2778 is a high-severity memory corruption vulnerability in Tor Tor, published on 23 Dec 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.
Weakness: CWE-119
Which versions are affected by CVE-2011-2778?
It affects 1 product.
Products include Tor Tor.
How do I fix CVE-2011-2778?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2011-2778 being exploited?
There is no known exploitation of CVE-2011-2778 in the wild and no public exploit code.
Other vulnerabilities in Tor Tor
- CVE-2010-1676 Memory corruption in n/a
- CVE-2009-0939 Tor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as
- CVE-2009-0414 Memory corruption in n/a
- CVE-2008-5398 Information disclosure in n/a
- CVE-2006-3409 Integer overflow in n/a
Sources
Also known as DEBIAN-CVE-2011-2778, DSA-2363-1, GHSA-63gv-rq26-r5mp.