CVE-2015-6242

NameCVE-2015-6242
DescriptionThe 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-3367-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
wireshark (PTS)buster2.6.20-0+deb10u4fixed
buster (security)2.6.20-0+deb10u8fixed
bullseye (security), bullseye3.4.10-0+deb11u1fixed
bookworm, bookworm (security)4.0.11-1~deb12u1fixed
trixie4.2.2-1fixed
sid4.2.2-1.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
wiresharksourcesqueeze(unfixed)end-of-life
wiresharksourcewheezy(not affected)
wiresharksourcejessie1.12.1+g01b65bf-4+deb8u3DSA-3367-1
wiresharksource(unstable)1.12.7+g7fc8978-1

Notes

[wheezy] - wireshark <not-affected> (Vulnerable code not present)
[squeeze] - wireshark <end-of-life> (Not supported in Squeeze LTS)
https://www.wireshark.org/security/wnpa-sec-2015-22.html

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