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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 1.12.7+g7fc8978-1 |
| debian | bullseye | fixed | 1.12.7+g7fc8978-1 |
| debian | forky | fixed | 1.12.7+g7fc8978-1 |
| debian | sid | fixed | 1.12.7+g7fc8978-1 |
| debian | trixie | fixed | 1.12.7+g7fc8978-1 |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168837.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-September/165509.html
- http://lists.opensuse.org/opensuse-updates/2015-10/msg00053.html
- http://www.debian.org/security/2015/dsa-3367
- http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
- http://www.securitytracker.com/id/1033272
- http://www.wireshark.org/security/wnpa-sec-2015-22.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=11373
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=eaf1aad31e7c0a4908c20a42ae118c4dc8d474b6
- https://security-tracker.debian.org/tracker/CVE-2015-6242
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.