CVE-2013-7295 Weak cryptography in n/a

Medium 4.0 Published Updated

Remote attackers may bypass cryptographic protections in Tor due to weak random number generation on specific Intel hardware with HardwareAccel enabled.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2013-7295?

CVE-2013-7295 is a medium-severity vulnerability in n/a, published on 17 Jan 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Tor before 0.2.4.20, when OpenSSL 1.x is used in conjunction with a certain HardwareAccel setting on Intel Sandy Bridge and Ivy Bridge platforms, does not properly generate random numbers for (1) relay identity keys and (2) hidden-service identity keys, which might make it easier for remote attackers to bypass cryptographic protection mechanisms via unspecified vectors.

Weakness: CWE-310

Which versions are affected by CVE-2013-7295?

It affects 1 product.

Products include Torproject Tor.

How do I fix CVE-2013-7295?

Upgrade to a fixed version.

Is CVE-2013-7295 being exploited?

There is no known exploitation of CVE-2013-7295 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2013-7295, GHSA-3x57-m985-pg67, MGASA-2014-0059.

Is CVE-2013-7295 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free