| Name | CVE-2021-20231 |
| Description | A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| gnutls28 (PTS) | bullseye | 3.7.1-5+deb11u5 | fixed |
| bullseye (security) | 3.7.1-5+deb11u6 | fixed |
| bookworm | 3.7.9-2+deb12u3 | fixed |
| sid, trixie | 3.8.8-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| gnutls28 | source | stretch | (not affected) | | | |
| gnutls28 | source | buster | 3.6.7-4+deb10u7 | | | |
| gnutls28 | source | (unstable) | 3.7.1-1 | | | |
Notes
[stretch] - gnutls28 <not-affected> (Vulnerable code introduced later)
https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10
https://gitlab.com/gnutls/gnutls/-/issues/1151