Security readout for executives and security teams
Plain-English summary
CVE-2018-1000179 is a denial-of-service flaw in Quassel 0.12.4. A malformed or unexpected login-handling condition can crash the Quassel core process. The business risk is service disruption, not documented data theft or code execution, based on the provided sources.
Executive priority
Treat this as a service availability issue. Prioritize remediation where Quassel core is externally reachable or supports business-critical communications. It is not supported by the provided sources as a data breach or remote code execution issue.
Technical view
The issue is reported as a CWE-476 NULL pointer dereference in quasselcore, specifically CoreAuthHandler::handle(const Login &msg) around coreauthhandler.cpp line 235. The stated impact is denial of service. The source bundle does not provide CVSS, exploit prerequisites, or fixed upstream version details.
Likely exposure
Exposure is most likely on systems running Quassel core 0.12.4, especially IRC bouncer services reachable by untrusted users or external clients. Distribution package status should be verified against Debian, Gentoo, and Ubuntu advisories.
Exploitation context
The provided bundle does not show active exploitation, and the CVE is not marked KEV. The known impact is availability loss through service crash. The sources do not provide enough evidence to claim broader compromise or weaponized public exploitation.
Researcher notes
Evidence is sparse: the bundle identifies the vulnerable function and denial-of-service impact, but lacks CVSS, trigger conditions, fixed upstream commit, and exploit maturity details. Validate through package advisories rather than assuming all Quassel versions are affected.
Mitigation direction
- Identify any Quassel core deployments and package versions.
- Review Debian, Gentoo, or Ubuntu advisories for corrected packages.
- Apply applicable vendor security updates for Quassel packages.
- Restrict Quassel core access to trusted networks where practical.
- Monitor service restarts or crashes around authentication activity.
Validation and detection
- Check installed Quassel package versions against affected 0.12.4 status.
- Confirm operating-system vendor advisory applicability for each host.
- Verify Quassel core remains stable after patching.
- Review logs for unexplained quasselcore crashes.
- Document internet-facing or untrusted-client exposure.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2018-1000179 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- DSA-4189CVE reference · vendor-advisory, x_refsource_DEBIAN
- GLSA-201806-04CVE reference · vendor-advisory, x_refsource_GENTOO
- https://github.com/quassel/quassel/blob/master/src/core/coreauthhandler.cpp#L236CVE reference · x_refsource_CONFIRM
- USN-4594-1CVE reference · vendor-advisory, x_refsource_UBUNTU
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.