CVE-2017-5336 Memory corruption in n/a
Remote attackers can trigger a stack-based buffer overflow in GnuTLS via crafted OpenPGP certificates, potentially leading to code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-5336?
CVE-2017-5336 is a critical memory corruption vulnerability in Gnu Gnutls, published on 24 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Stack-based buffer overflow in the cdk_pk_get_keyid function in lib/opencdk/pubkey.c in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allows remote attackers to have unspecified impact via a crafted OpenPGP certificate.
Weakness: CWE-119
Which versions are affected by CVE-2017-5336?
It affects 2 products.
Products include Gnu Gnutls, Opensuse Leap.
How do I fix CVE-2017-5336?
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-2017-5336 being exploited?
There is no known exploitation of CVE-2017-5336 in the wild and no public exploit code.
Other vulnerabilities in Gnu Gnutls
Sources
Also known as DEBIAN-CVE-2017-5336, GHSA-93p2-4472-9gj5, UBUNTU-CVE-2017-5336.