| Name | CVE-2025-53538 |
| Description | Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions 7.0.10 and below and 8.0.0-beta1 through 8.0.0-rc1, mishandling of data on HTTP2 stream 0 can lead to uncontrolled memory usage, leading to loss of visibility. Workarounds include disabling the HTTP/2 parser, and using a signature like drop http2 any any -> any any (frame:http2.hdr; byte_test:1,=,0,3; byte_test:4,=,0,5; sid: 1;) where the first byte test tests the HTTP2 frame type DATA and the second tests the stream id 0. This is fixed in versions 7.0.11 and 8.0.0. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1109806 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| suricata (PTS) | bullseye | 1:6.0.1-3 | vulnerable |
| bullseye (security) | 1:6.0.1-3+deb11u1 | vulnerable | |
| bookworm | 1:6.0.10-1 | vulnerable | |
| sid, trixie | 1:7.0.10-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| suricata | source | (unstable) | (unfixed) | 1109806 |
https://github.com/OISF/suricata/security/advisories/GHSA-qrr7-crgj-cmh3
Fixed by: https://github.com/OISF/suricata/commit/1d6d331752e933c46aca0ae7a9679b27462246e3 (suricata-8.0.0)
Fixed by: https://github.com/OISF/suricata/commit/7fa88ea9e7d05e07a7864050cfd836b576669720 (suricata-7.0.11)