DEBIAN-CVE-2006-4434

Source
https://security-tracker.debian.org/tracker/CVE-2006-4434
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-4434.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2006-4434
Upstream
Downstream
Published
2006-08-29T00:04:00Z
Modified
2026-09-12T07:00:42Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

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. NOTE: the original developer has disputed the severity of this issue, saying "The only denial of service that is possible here is to fill up the disk with core dumps if the OS actually generates different core dumps (which is unlikely)... the bug is in the shutdown code (finis()) which leads directly to exit(3), i.e., the process would terminate anyway, no mail delivery or receiption is affected."

References

Affected packages

Debian:12 / sendmail

Package

Name
sendmail
Purl
pkg:deb/debian/sendmail?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.13.8-1

Ecosystem specific

{
    "urgency": "medium"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-4434.json"

Debian:13 / sendmail

Package

Name
sendmail
Purl
pkg:deb/debian/sendmail?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.13.8-1

Ecosystem specific

{
    "urgency": "medium"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-4434.json"

Debian:14 / sendmail

Package

Name
sendmail
Purl
pkg:deb/debian/sendmail?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.13.8-1

Ecosystem specific

{
    "urgency": "medium"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-4434.json"