Integer Overflow or Wraparound Affecting gst-plugins-good1.0 package, versions <1.18.4-2+deb11u1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.07% (31st percentile)

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  • Snyk ID SNYK-DEBIAN11-GSTPLUGINSGOOD10-2959363
  • published 23 Jul 2022
  • disclosed 19 Jul 2022

How to fix?

Upgrade Debian:11 gst-plugins-good1.0 to version 1.18.4-2+deb11u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gst-plugins-good1.0 package and not the gst-plugins-good1.0 package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

DOS / potential heap overwrite in mkv demuxing using zlib decompression. Integer overflow in matroskademux element in gst_matroska_decompress_data function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite. If the libc uses mmap for large chunks, and the OS supports mmap, then it is just a segfault (because the realloc before the integer overflow will use mremap to reduce the size of the chunk, and it will start to write to unmapped memory). However, if using a libc implementation that does not use mmap, or if the OS does not support mmap while using libc, then this could result in a heap overwrite.

CVSS Scores

version 3.1
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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
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SUSE

6.1 medium
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Red Hat

7.8 high