CVE-2015-3223

NameCVE-2015-3223
DescriptionThe ldb_wildcard_compare function in ldb_match.c in ldb before 1.1.24, as used in the AD LDAP server in Samba 4.x before 4.1.22, 4.2.x before 4.2.7, and 4.3.x before 4.3.3, mishandles certain zero values, which allows remote attackers to cause a denial of service (infinite loop) 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
ldb (PTS)wheezy1:1.1.6-1vulnerable
jessie (security), jessie2:1.1.20-0+deb8u1fixed
stretch2:1.1.27-1fixed
buster, sid2:1.1.29-2fixed
samba (PTS)wheezy2:3.6.6-6+deb7u7fixed
wheezy (security)2:3.6.6-6+deb7u14fixed
jessie2:4.2.14+dfsg-0+deb8u6fixed
jessie (security)2:4.2.14+dfsg-0+deb8u8fixed
stretch2:4.5.12+dfsg-2fixed
stretch (security)2:4.5.8+dfsg-2+deb9u2fixed
buster, sid2:4.6.7+dfsg-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
ldbsource(unstable)2:1.1.24-1medium
ldbsourcejessie2:1.1.17-2+deb8u1medium
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 4.3.2)
[squeeze] - samba <not-affected> (Only affects 4.0.0 to 4.3.2)
[wheezy] - ldb <no-dsa> (Minor issue, only relevant in conjunction with Samba 4, which isn't in wheezy)
[squeeze] - ldb <no-dsa> (Minor issue)
https://www.samba.org/samba/security/CVE-2015-3223.html
https://git.samba.org/?p=samba.git;a=commit;h=fb456954f332c07a645226d59b3b00ec252f8b26 (v4-1-stable)
https://git.samba.org/?p=samba.git;a=commit;h=bb1b783ee9d7259cfc6a1fe882f22189747f8684 (v4-1-stable)
Samba update needs as well fixed ldb

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