Improper Input Validation Affecting wireshark package, versions <1.12.7+g7fc8978-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
2.81% (85th percentile)

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  • Snyk IDSNYK-ECHOLATEST-WIRESHARK-17979027
  • published15 Jul 2026
  • disclosed24 Aug 2015

Introduced: 24 Aug 2015

CVE-2015-6242  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Echo:latest wireshark to version 1.12.7+g7fc8978-1 or higher.

NVD Description

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

The wmem_block_split_free_chunk function in epan/wmem/wmem_allocator_block.c in the wmem block allocator in the memory manager in Wireshark 1.12.x before 1.12.7 does not properly consider a certain case of multiple realloc operations that restore a memory chunk to its original size, which allows remote attackers to cause a denial of service (incorrect free operation and application crash) via a crafted packet.

CVSS Base Scores

version 3.1