Improper Input Validation Affecting wireshark package, versions <2.6.3-1~ubuntu18.04.1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
2.81% (85th percentile)

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  • Snyk IDSNYK-UBUNTU1804-WIRESHARK-375467
  • published24 Aug 2015
  • 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 Ubuntu:18.04 wireshark to version 2.6.3-1~ubuntu18.04.1 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 Ubuntu. See How to fix? for Ubuntu:18.04 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