| Name | CVE-2026-1584 |
| Description | A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition. |
| 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) |
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+deb11u9 | fixed | |
| bookworm | 3.7.9-2+deb12u5 | fixed | |
| bookworm (security) | 3.7.9-2+deb12u6 | fixed | |
| trixie (security), trixie | 3.8.9-3+deb13u2 | fixed | |
| forky, sid | 3.8.12-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| gnutls28 | source | bullseye | (not affected) | |||
| gnutls28 | source | bookworm | (not affected) | |||
| gnutls28 | source | trixie | (not affected) | |||
| gnutls28 | source | (unstable) | 3.8.12-1 |
[trixie] - gnutls28 <not-affected> (Vulnerable code not present)
[bookworm] - gnutls28 <not-affected> (Vulnerable code not present)
[bullseye] - gnutls28 <not-affected> (Vulnerable code not present)
https://gitlab.com/gnutls/gnutls/-/issues/1790
Introduced with: https://gitlab.com/gnutls/gnutls/-/commit/33034a91c2c1f38bad19e747d3021885d54bfb44 (3.8.11)
Fixed by: https://gitlab.com/gnutls/gnutls/-/commit/acf67a4a68bc6d9ab7b882469c67f6cf28db56a0 (3.8.12)