CVE-2014-0239

NameCVE-2014-0239
DescriptionThe internal DNS server in Samba 4.x before 4.0.18 does not check the QR field in the header section of an incoming DNS message before sending a response, which allows remote attackers to cause a denial of service (CPU and bandwidth consumption) via a forged response packet that triggers a communication loop, a related issue to CVE-1999-0103.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs749845

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
samba (PTS)buster, buster (security)2:4.9.5+dfsg-5+deb10u3fixed
bullseye2:4.13.13+dfsg-1~deb11u4fixed
bullseye (security)2:4.13.13+dfsg-1~deb11u5fixed
bookworm, sid2:4.16.4+dfsg-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
sambasourcesqueeze(not affected)
sambasourcewheezy(not affected)
sambasource(unstable)2:4.1.8+dfsg-1749845
samba4source(unstable)4.0.0~beta2+dfsg1-3.2+deb7u2

Notes

[squeeze] - samba <not-affected> (AD feature not present)
[wheezy] - samba <not-affected> (AD feature not present)
AD-related packages removed from src:samba4 in 4.0.0~beta2+dfsg1-3.2+deb7u2

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