| Name | CVE-2015-6242 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-3367-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| wireshark (PTS) | jessie, jessie (lts) | 1.12.1+g01b65bf-4+deb8u19 | fixed |
| stretch (security) | 2.6.20-0+deb9u3 | fixed |
| stretch (lts), stretch | 2.6.20-0+deb10u9~deb9u1 | fixed |
| buster, buster (lts) | 2.6.20-0+deb10u9 | fixed |
| buster (security) | 2.6.20-0+deb10u8 | fixed |
| bullseye | 3.4.10-0+deb11u1 | fixed |
| bullseye (security) | 3.4.16-0+deb11u1 | fixed |
| bookworm | 4.0.17-0+deb12u1 | fixed |
| bookworm (security) | 4.0.11-1~deb12u1 | fixed |
| sid, trixie | 4.4.2-1 | fixed |
The information below is based on the following data on fixed versions.
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