UBUNTU-CVE-2025-53538
- Source
- https://ubuntu.com/security/CVE-2025-53538
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-53538.json
- JSON Data
- https://api.osv.dev/v1/vulns/UBUNTU-CVE-2025-53538
- Upstream
- Published
- 2025-07-22T22:15:00Z
- Modified
- 2025-07-31T05:10:37Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Ubuntu - medium
- Summary
- [none]
- Details
-
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; bytetest:1,=,0,3; bytetest: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.
- References
Affected packages
Ubuntu:Pro:16.04:LTS / suricata
Package
- Name
- suricata
- Purl
- pkg:deb/ubuntu/suricata@3.0-1?arch=source&distro=esm-apps/xenial
Ubuntu:Pro:18.04:LTS / suricata
Package
- Name
- suricata
- Purl
- pkg:deb/ubuntu/suricata@3.2-2ubuntu3?arch=source&distro=esm-apps/bionic
Ubuntu:22.04:LTS / suricata
Package
- Name
- suricata
- Purl
- pkg:deb/ubuntu/suricata@1:6.0.4-3?arch=source&distro=jammy
Ubuntu:24.04:LTS / suricata
Package
- Name
- suricata
- Purl
- pkg:deb/ubuntu/suricata@1:7.0.3-1build3?arch=source&distro=noble