In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the PVFS dissector could crash. This was addressed in epan/dissectors/packet-pvfs2.c by preventing a NULL pointer dereference.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Wireshark | Wireshark | 2.4.0 (including) | 2.4.10 (including) |
| Wireshark | Wireshark | 2.6.0 (including) | 2.6.4 (including) |
| Wireshark | Ubuntu | bionic | * |
| Wireshark | Ubuntu | cosmic | * |
| 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 | upstream | * |
| Wireshark | Ubuntu | xenial | * |
Potential Mitigations
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/106051
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15280
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=3e319db1107b08fc3be804b6d449143ec9aa0dec
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- https://www.debian.org/security/2018/dsa-4359
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.wireshark.org/security/wnpa-sec-2018-56.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/106051
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15280
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=3e319db1107b08fc3be804b6d449143ec9aa0dec
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- https://www.debian.org/security/2018/dsa-4359
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://www.wireshark.org/security/wnpa-sec-2018-56.html