Use After Free Affecting libpng1.6 package, versions <1.6.36-4


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.46% (76th percentile)

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  • Snyk ID SNYK-DEBIAN10-LIBPNG16-296446
  • published 4 Feb 2019
  • disclosed 4 Feb 2019

How to fix?

Upgrade Debian:10 libpng1.6 to version 1.6.36-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpng1.6 package and not the libpng1.6 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

png_image_free in png.c in libpng 1.6.x before 1.6.37 has a use-after-free because png_image_free_function is called under png_safe_execute.

References

CVSS Scores

version 3.1
Expand this section

NVD

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