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Fencer Vulns
high 7.5

CVE-2018-1000179 json

A NULL Pointer Dereference of CWE-476 exists in quassel version 0.12.4 in the quasselcore void CoreAuthHandler::handle(const Login &msg) co…

published 2018-05-08 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-1872

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

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.

Patch / fix

  • quassel Debian 14, Debian 13, Debian 12 1:0.12.5-1

debian advisories DEBIAN-CVE-2018-1000179

  • quassel Ubuntu 14.04 LTS 0.10.0-0ubuntu2.3
  • quassel Ubuntu 18.04 LTS 1:0.12.4-3ubuntu1.18.04.3

ubuntu advisories UBUNTU-CVE-2018-1000179

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Exploit prediction

2.28% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/quassel/quassel/blob/master/src/core/coreauthhandler.cpp#L236 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.