CVE-2015-2928 Denial of service in Tor
Remote attackers can cause a denial of service in Tor Hidden Service servers via unspecified vectors, requiring an upgrade to patched versions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2015-2928?
CVE-2015-2928 is a high-severity denial of service vulnerability in The Tor Project Tor, published on 24 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Hidden Service (HS) server implementation in Tor before 0.2.4.27, 0.2.5.x before 0.2.5.12, and 0.2.6.x before 0.2.6.7 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via unspecified vectors.
Which versions are affected by CVE-2015-2928?
It affects 1 product.
Products include Torproject Tor.
How do I fix CVE-2015-2928?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2015-2928 being exploited?
There is no known exploitation of CVE-2015-2928 in the wild and no public exploit code.
Other vulnerabilities in The Tor Project Tor
Sources
Also known as DEBIAN-CVE-2015-2928, GHSA-f48h-2gff-477g, UBUNTU-CVE-2015-2928.