OSV-2017-138 Heap-use-after-free in gnutls_x509_crl_deinit
A heap-use-after-free vulnerability in GnuTLS allows attackers to cause denial of service or potentially execute code via crafted PKCS12 data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2017-138?
OSV-2017-138 is an use after free vulnerability in gnutls, published on 15 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1304
Crash type: Heap-use-after-free READ 8
Crash state:
gnutls_x509_crl_deinit
gnutls_pkcs12_simple_parse
_start
Which versions are affected by OSV-2017-138?
1 open source package ship an affected version, including gnutls.
| Package | Affected | Fixed in |
|---|---|---|
gnutls OSS-Fuzz | All versions | None |
How do I fix OSV-2017-138?
No fix has been published for OSV-2017-138 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is OSV-2017-138 being exploited?
There is no known exploitation of OSV-2017-138 in the wild and no public exploit code.