Out-of-bounds Write Affecting php8-exif package, versions <8.0.24-150400.4.14.1


Severity

Recommended
high

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.31% (71st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-SLES154-PHP8EXIF-3057300
  • published20 Oct 2022
  • disclosed19 Oct 2022

Introduced: 19 Oct 2022

CVE-2021-21703  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 php8-exif to version 8.0.24-150400.4.14.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php8-exif package and not the php8-exif package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user.

CVSS Base Scores

version 3.1