Use After Free Affecting ghostscript-x11 package, versions <0:9.27-1.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.04% (6th percentile)

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  • Snyk ID SNYK-RHEL8-GHOSTSCRIPTX11-4023737
  • published 26 Jul 2021
  • disclosed 2 Sep 2020

How to fix?

Upgrade RHEL:8 ghostscript-x11 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-x11 package and not the ghostscript-x11 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A use after free was found in igc_reloc_struct_ptr() of psi/igc.c of ghostscript-9.25. A local attacker could supply a specially crafted PDF file to cause a denial of service.

CVSS Scores

version 3.1
Expand this section

NVD

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

Red Hat

5.5 medium