CVE-2011-0493 Integer overflow in n/a
Remote attackers can cause a denial of service in Tor by sending malformed router caches, triggering an assertion failure and daemon exit.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-0493?
CVE-2011-0493 is a medium-severity vulnerability in Tor Tor, published on 19 Jan 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha might allow remote attackers to cause a denial of service (assertion failure and daemon exit) via vectors related to malformed router caches and improper handling of integer values.
Weakness: CWE-189
Which versions are affected by CVE-2011-0493?
It affects 1 product.
Products include Tor Tor.
How do I fix CVE-2011-0493?
Upgrade to a fixed version.
Is CVE-2011-0493 being exploited?
There is no known exploitation of CVE-2011-0493 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-2011-2778 Memory corruption in n/a
Sources
Also known as DEBIAN-CVE-2011-0493, GHSA-r4gp-h7pq-qx3w.