CVE-2024-8929

Leak partial content of the heap through heap buffer over-read in mysqlnd

MEDIUM

5.8

CVSS Score

Published: November 22, 2024 at 06:15 AM UTC

Updated: June 17, 2026 at 08:23 AM UTC

1 product affected across 1 vendorPHP

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Severity

MEDIUM5.8

Exploit prediction

EPSS 2%

SSVC

PoC

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PHP · PHPdrupal

95%

8.1.* ≤ v < 8.1.318.1.0 ≤ v < 8.1.318.2.* ≤ v < 8.2.248.2.0 ≤ v < 8.2.248.2.0 ≤ v < 8.2.268.3.* ≤ v < 8.3.148.3.0 ≤ v < 8.3.148.1.*8.1.0 8.2.*8.2.0 8.3.*8.3.0

Affected range stops below 8.1.31, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.2.24, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.2.26, so it looks safe — our inference, not a vendor statement

Affected range stops below 8.3.14, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://github.com/php/php-src/security/advisories/GHSA-h35g-vwh6-m678

References (3)

ExploitVendor Advisory

Source: [email protected]

https://github.com/php/php-src/security/advisories/GHSA-h35g-vwh6-m678

Third Party Advisory

Source: af854a3a-2127-422b-91ae-364da2661108

https://security.netapp.com/advisory/ntap-20250110-0008/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.debian.org/debian-lts-announce/2024/12/msg00007.html

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.8MEDIUMphp

Attack Vector: ADJACENT_NETWORK
Complexity: HIGH
Privileges: LOW
User Interaction: NONE
Scope: CHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-125CWE-200

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