CVE-2006-4434

NameCVE-2006-4434
DescriptionUse-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."
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-1164
NVD severitymedium
Debian Bugs385054

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
sendmail (PTS)stretch8.15.2-8+deb9u1fixed
buster8.15.2-14~deb10u1fixed
bullseye, sid8.15.2-20fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
sendmailsourcesarge8.13.4-3sarge3DSA-1164
sendmailsource(unstable)8.13.8-1medium385054

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