DEBIAN-CVE-2025-53538

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Source

https://security-tracker.debian.org/tracker/CVE-2025-53538

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-53538.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-53538

Upstream

CVE-2025-53538

Published

2025-07-22T22:15:37Z

Modified

2026-09-01T20:05:53Z

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

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; 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.

References

https://security-tracker.debian.org/tracker/CVE-2025-53538

Affected packages

Debian:13 / suricata

Package

Name: suricata
Purl: pkg:deb/debian/suricata?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1:7.0.10-1+deb13u1

Affected versions

1:7.*

1:7.0.10-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-53538.json"

Debian:14 / suricata