| Name | CVE-2020-12823 | 
| Description | OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c. | 
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) | 
| References | DLA-2212-1 | 
| Debian Bugs | 960620 | 
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status | 
|---|
| openconnect (PTS) | bullseye | 8.10-2 | fixed | 
|  | bookworm | 9.01-3 | fixed | 
|  | forky, trixie | 9.12-3 | fixed | 
|  | sid | 9.12-3.1 | fixed | 
The information below is based on the following data on fixed versions.
Notes
https://gitlab.com/openconnect/openconnect/-/merge_requests/108
Only triggerable by local certs, which are under the control of the user