In Wireshark 2.6.0 to 2.6.1 and 2.4.0 to 2.4.7, the CoAP protocol dissector could crash. This was addressed in epan/dissectors/packet-coap.c by properly checking for a NULL condition.
Weakness
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Wireshark | Wireshark | 2.4.0 (including) | 2.4.7 (including) |
| Wireshark | Wireshark | 2.6.0 (including) | 2.6.1 (including) |
| Wireshark | Ubuntu | artful | * |
| Wireshark | Ubuntu | bionic | * |
| Wireshark | Ubuntu | esm-apps/bionic | * |
| Wireshark | Ubuntu | esm-apps/xenial | * |
| Wireshark | Ubuntu | esm-infra-legacy/trusty | * |
| Wireshark | Ubuntu | trusty | * |
| Wireshark | Ubuntu | trusty/esm | * |
| Wireshark | Ubuntu | xenial | * |
Potential Mitigations
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/104847
- http://www.securitytracker.com/id/1041608
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14966
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=81ce5fcb3e37a0aaeb7532f7a2a09366f16fa310
- https://www.wireshark.org/security/wnpa-sec-2018-42.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/104847
- http://www.securitytracker.com/id/1041608
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14966
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=81ce5fcb3e37a0aaeb7532f7a2a09366f16fa310
- https://www.wireshark.org/security/wnpa-sec-2018-42.html