Bug 2511423 - CVE-2026-17544 php: PHP: Arbitrary code execution via out-of-bounds write in bccomp() [fedora-all]
Summary: CVE-2026-17544 php: PHP: Arbitrary code execution via out-of-bounds write in ...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: php
Version: rawhide
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: ---
Assignee: Remi Collet
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard: {"flaws": ["6dd9dac6-3623-4b3c-a015-5...
Depends On:
Blocks: CVE-2026-17544
TreeView+ depends on / blocked
 
Reported: 2026-08-05 09:18 UTC by Abhishek Raj
Modified: 2026-08-07 01:36 UTC (History)
2 users (show)

Fixed In Version: php-8.4.24-1.fc43
Clone Of:
Environment:
Last Closed: 2026-08-07 01:36:43 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)

Description Abhishek Raj 2026-08-05 09:18:26 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Attacker-provided inputs to bccomp() could lead to an out-of-bounds write with stack and heap corruption in PHP versions from 8.4.* before 8.4.24 and from 8.5.* before 8.5.9.
Comment 1 Remi Collet 2026-08-05 09:37:13 UTC 
PHP 8.5.9 already in F44 stable
Comment 2 Fedora Update System 2026-08-05 09:37:43 UTC 
FEDORA-2026-d755ca77c4 (php-8.4.24-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-d755ca77c4
Comment 3 Fedora Update System 2026-08-07 01:36:43 UTC 
FEDORA-2026-d755ca77c4 (php-8.4.24-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.
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