CVE-2011-1924 Memory corruption in n/a
Remote attackers can crash Tor directory authorities via a crafted policy causing a buffer overflow, requiring an upgrade to mitigate.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2011-1924?
CVE-2011-1924 is a medium-severity memory corruption vulnerability in Tor Tor, published on 14 Jun 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.
Weakness: CWE-119
Which versions are affected by CVE-2011-1924?
It affects 1 product.
Products include Tor Tor.
How do I fix CVE-2011-1924?
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-2011-1924 being exploited?
There is no known exploitation of CVE-2011-1924 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-2011-1924, GHSA-f3pm-2c82-x85g.