Use After Free Affecting ghostscript-tools-fonts package, versions <0:9.27-1.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.6% (79th percentile)

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  • Snyk ID SNYK-RHEL8-GHOSTSCRIPTTOOLSFONTS-4032091
  • published 26 Jul 2021
  • disclosed 13 Aug 2020

How to fix?

Upgrade RHEL:8 ghostscript-tools-fonts to version 0:9.27-1.el8 or higher.
This issue was patched in RHSA-2021:1852.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ghostscript-tools-fonts package and not the ghostscript-tools-fonts package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A use-after-free vulnerability in xps_finish_image_path() in devices/vector/gdevxps.c of Artifex Software GhostScript v9.50 allows a remote attacker to escalate privileges via a crafted PDF file. This is fixed in v9.51.

CVSS Scores

version 3.1
Expand this section

NVD

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section

Red Hat

7.8 high