CVE-2017-12940 Memory corruption in n/a
An out-of-bounds read in the UnRAR library allows attackers to cause denial of service or disclose sensitive information via crafted archives.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-12940?
CVE-2017-12940 is a critical memory corruption vulnerability in n/a, published on 18 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libunrar.a in UnRAR before 5.5.7 has an out-of-bounds read in the EncodeFileName::Decode call within the Archive::ReadHeader15 function.
Weakness: CWE-125
Which versions are affected by CVE-2017-12940?
It affects 1 product.
Products include Rarlab Unrar.
How do I fix CVE-2017-12940?
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-2017-12940 being exploited?
There is no known exploitation of CVE-2017-12940 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2017-12940, GHSA-7rmv-8xhh-9hgp, UBUNTU-CVE-2017-12940.