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Incorrect Use of Privileged APIs Affecting libgs package, versions <0:9.25-2.el8_0.1

Severity

 Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.22% (61st percentile)

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  • Snyk ID SNYK-RHEL8-LIBGS-4362750
  • published 26 Jul 2021
  • disclosed 21 Mar 2019
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Introduced: 21 Mar 2019

CVE-2019-3835 Open this link in a new tab
CWE-648 Open this link in a new tab

How to fix?

Upgrade RHEL:8 libgs to version 0:9.25-2.el8_0.1 or higher.
This issue was patched in RHSA-2019:0971.

NVD Description

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

It was found that the superexec operator was available in the internal dictionary in ghostscript before 9.27. A specially crafted PostScript file could use this flaw in order to, for example, have access to the file system outside of the constrains imposed by -dSAFER.

References

CVSS Scores

version 3.1
Expand this section

NVD

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