CVE-2011-2174

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2011-06-06 · updated 2026-06-16
Weakness: CWE-399

Description

Double free vulnerability in the tvb_uncompress function in epan/tvbuff.c in Wireshark 1.2.x before 1.2.17 and 1.4.x before 1.4.7 allows remote attackers to cause a denial of service (application crash) via a packet with malformed data that uses zlib compression.

Affected products

Wireshark Foundation Wireshark: 1.2, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4 (+19)

References

http://anonsvn.wireshark.org/viewvc?view=revision&revision=37081
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061290.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061437.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061477.html
http://openwall.com/lists/oss-security/2011/05/31/20
http://openwall.com/lists/oss-security/2011/06/01/1
http://openwall.com/lists/oss-security/2011/06/01/11
http://secunia.com/advisories/44449
http://secunia.com/advisories/44958
http://secunia.com/advisories/45149
http://secunia.com/advisories/48947
http://www.debian.org/security/2011/dsa-2274

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