CVE-2015-7540

NameCVE-2015-7540
DescriptionThe LDAP server in the AD domain controller in Samba 4.x before 4.1.22 does not check return values to ensure successful ASN.1 memory allocation, which allows remote attackers to cause a denial of service (memory consumption and daemon crash) via crafted packets.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3433-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
samba (PTS)wheezy2:3.6.6-6+deb7u7fixed
wheezy (security)2:3.6.6-6+deb7u15fixed
jessie (security), jessie2:4.2.14+dfsg-0+deb8u9fixed
stretch (security), stretch2:4.5.12+dfsg-2+deb9u1fixed
buster, sid2:4.7.3+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
sambasource(unstable)2:4.1.22+dfsg-1medium
sambasourcejessie2:4.1.17+dfsg-2+deb8u1mediumDSA-3433-1
sambasourcesqueeze(not affected)
sambasourcewheezy2:3.6.6-6+deb7u6mediumDSA-3433-1

Notes

[wheezy] - samba <not-affected> (Only affects 4.0.0 to 4.1.21)
[squeeze] - samba <not-affected> (Only affects 4.0.0 to 4.1.21)
https://www.samba.org/samba/security/CVE-2015-7540.html

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