CVE-2016-6504
Description
epan/dissectors/packet-ncp2222.inc in the NDS dissector in Wireshark 1.12.x before 1.12.13 does not properly maintain a ptvc data structure, which allows remote attackers to cause a denial of service (NULL pointer dereference 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.
Exploits
Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.
Exploit-DB
Wireshark 1.12.0 < 1.12.12 - NDS Dissector Denial of Service
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 2.0 |
| debian | bullseye | fixed | 2.0 |
| debian | forky | fixed | 2.0 |
| debian | sid | fixed | 2.0 |
| debian | trixie | fixed | 2.0 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| wireshark | wireshark | 1.12.0 | |
| wireshark | wireshark | 1.12.1 | |
| wireshark | wireshark | 1.12.2 | |
| wireshark | wireshark | 1.12.3 | |
| wireshark | wireshark | 1.12.4 | |
| wireshark | wireshark | 1.12.5 | |
| wireshark | wireshark | 1.12.6 | |
| wireshark | wireshark | 1.12.7 | |
| wireshark | wireshark | 1.12.8 | |
| wireshark | wireshark | 1.12.9 | |
| wireshark | wireshark | 1.12.10 | |
| wireshark | wireshark | 1.12.11 | |
| wireshark | wireshark | 1.12.12 | |
References
- http://openwall.com/lists/oss-security/2016/07/28/3
- http://www.debian.org/security/2016/dsa-3648
- http://www.securityfocus.com/bid/92164
- http://www.securitytracker.com/id/1036480
- http://www.wireshark.org/security/wnpa-sec-2016-40.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12576
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9eacbb4d48df647648127b9258f9e5aeeb0c7d99
- https://www.exploit-db.com/exploits/40194/
- https://www.suse.com/security/cve/CVE-2016-6504.html
- https://security-tracker.debian.org/tracker/CVE-2016-6504
CWEs
CWE-476
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.