Leak partial content of the heap through heap buffer over-read in mysqlnd
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 2 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
In PHP versions 8.1.* before 8.1.31, 8.2.* before 8.2.26, 8.3.* before 8.3.14, a hostile MySQL server can cause the client to disclose the content of its heap containing data from other SQL requests and possible other data belonging to different users of the same server.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA PHP (PHP Group) Fixed in 8.1.31, 8.2.24, 8.3.14
Red Hat 5 advisories
- RHSA-2026:2470 Released 2026-02-10 · Red Hat rating Moderatephp:7.4 security update
- Red Hat Enterprise Linux AppStream (v. 8) apcu-panel-5.1.18-1.module+el8.10.0+22485+a3539972.noarch::php:7.4, libzip-1.6.1-1.module+el8.10.0+22485+a3539972.aarch64::php:7.4, libzip-1.6.1-1.module+el8.10.0+22485+a3539972.ppc64le::php:7.4 +47
- RHSA-2025:15687 Released 2025-09-11 · Red Hat rating Moderatephp:8.2 security update
- Red Hat Enterprise Linux AppStream (v. 8) apcu-panel-5.1.23-1.module+el8.10.0+20770+a5eca186.noarch::php:8.2, libzip-1.7.3-1.module+el8.10.0+20770+a5eca186.aarch64::php:8.2, libzip-1.7.3-1.module+el8.10.0+20770+a5eca186.ppc64le::php:8.2 +47
- RHSA-2025:7432 Released 2025-05-13 · Red Hat rating Moderatephp:8.2 security update
- Red Hat Enterprise Linux AppStream (v. 9) apcu-panel-5.1.23-1.module+el9.4.0+20748+b46899d2.noarch::php:8.2, php-8.2.28-1.module+el9.6.0+23063+43495379.aarch64::php:8.2, php-8.2.28-1.module+el9.6.0+23063+43495379.ppc64le::php:8.2 +47
Show 2 more Red Hat advisories
- RHSA-2025:7315 Released 2025-05-13 · Red Hat rating Moderatephp security update
- Red Hat Enterprise Linux AppStream (v. 9) php-8.0.30-2.el9, php-bcmath-8.0.30-2.el9, php-cli-8.0.30-2.el9 +22
- RHSA-2025:4263 Released 2025-04-28 · Red Hat rating Moderatephp:8.1 security update
- Red Hat Enterprise Linux AppStream (v. 9) apcu-panel-5.1.21-1.module+el9.1.0.z+15477+cb86791d.noarch::php:8.1, php-8.1.32-1.module+el9.5.0+23047+aadb97d2.aarch64::php:8.1, php-8.1.32-1.module+el9.5.0+23047+aadb97d2.ppc64le::php:8.1 +47
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 8 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:15687, RHSA-2026:2470 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:4263, RHSA-2025:7315, RHSA-2025:7432 |
Timeline
- 2026-10-02 Threatist record created from CVE-2024-8929
References
More PHP Group vulnerabilities
- TI-2024-04260 Argument Injection in PHP-CGI KEVCVSS 3.1CRITICAL 9.8
- TI-2026-78794 PHP remote code execution via stale global state KEVCVSS 4.0CRITICAL 9.2
- TI-2026-78793 Out-of-memory handling flaw in PHP allows remote code execution KEVCVSS 4.0CRITICAL 9.2
- TI-2024-01743 Command injection via array-ish $command parameter of proc_open() CVSS 3.1CRITICAL 9.4
- TI-2022-13555 PDO::quote() may return unquoted string CVSS 3.1CRITICAL 9.1
- TI-2024-10408 Reference counting in php_request_shutdown causes Use-After-Free CVSS 4.0CRITICAL 9.2
Sources
- CVE-2024-8929 · CVE Program
- CVE-2024-8929 · NVD
- FIRST EPSS
- CVE-2024-8929 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences