Debian/sendmail: high 7.5

Use-after-free vulnerability in Sendmail before 8.13.8 allows remote attackers to cause a denial of service (crash) via a long "header line", which causes a previously freed variable to be referenced.

Action: Upgrade sendmail to 8.13.8-1 or later.

Affected

Fixed versions

Sources

• osv: DEBIAN-CVE-2006-4434#Debian:13/sendmail
• https://security-tracker.debian.org/tracker/CVE-2006-4434

published 2006-08-29T00:04:00Z · modified 2026-10-23T00:00:08.559658772Z · JSON