CVE-2023-29197 | BDVDB-2026-200342 Detail
guzzlepsr7
Description#
guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Affected versions are subject to improper header parsing. An attacker could sneak in a newline (\n) into both the header names and values. While the specification states that \r\n\r\n is used to terminate the header list, many servers in the wild will also accept \n\n. This is a follow-up to CVE-2022-24775 where the fix was incomplete. The issue has been patched in versions 1.9.1 and 2.4.5. There are no known workarounds for this vulnerability. Users are advised to upgrade.
Impact#
Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact none. Attack vector: network.
Weaknesses#
- CWE-436 Interpretation Conflict
References#
- https://github.com/guzzle/psr7/security/advisories/GHSA-wxmh-65f7-jcvw
- https://github.com/guzzle/psr7/security/advisories/GHSA-q7rv-6hp3-vh96
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=2022-24775
- https://www.rfc-editor.org/rfc/rfc7230#section-3.2.4
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/O35UN4IK6VS2LXSRWUDFWY7NI73RKY2U/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FJANWDXJZE5BGLN4MQ4FEHV5LJ6CMKQF/
- https://lists.debian.org/debian-lts-announce/2023/12/msg00028.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.