A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login &msg) coreauthhandler.cpp line 235 that allows an attacker to cause a denial of service.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Quassel | Quassel-irc | 0.12.4 (including) | 0.12.4 (including) |
| Quassel | Ubuntu | artful | * |
| Quassel | Ubuntu | bionic | * |
| Quassel | Ubuntu | cosmic | * |
| Quassel | Ubuntu | disco | * |
| Quassel | Ubuntu | esm-apps/bionic | * |
| Quassel | Ubuntu | esm-apps/xenial | * |
| Quassel | Ubuntu | trusty | * |
| Quassel | Ubuntu | upstream | * |
| Quassel | Ubuntu | xenial | * |
Potential Mitigations
References
- https://github.com/quassel/quassel/blob/master/src/core/coreauthhandler.cpp#L236
- https://security.gentoo.org/glsa/201806-04
- https://usn.ubuntu.com/4594-1/
- https://www.debian.org/security/2018/dsa-4189
- https://github.com/quassel/quassel/blob/master/src/core/coreauthhandler.cpp#L236
- https://security.gentoo.org/glsa/201806-04
- https://usn.ubuntu.com/4594-1/
- https://www.debian.org/security/2018/dsa-4189