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CVE-2015-3223

Published: 16 December 2015

The 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.

Notes

AuthorNote
mdeslaur
says 4.0.0 to 4.3.2, need to check precise
may require ldb update

Priority

Medium

Cvss 3 Severity Score

5.3

Score breakdown

Status

Package Release Status
ldb
Launchpad, Ubuntu, Debian
precise
Released (1:1.1.4-1ubuntu0.1)
trusty
Released (1:1.1.16-1ubuntu0.1)
upstream Needs triage

vivid
Released (1:1.1.18-1ubuntu0.1)
wily
Released (2:1.1.20-2ubuntu0.1)
xenial
Released (2:1.1.24-1ubuntu1)
yakkety
Released (2:1.1.24-1ubuntu1)
zesty
Released (2:1.1.24-1ubuntu1)
samba
Launchpad, Ubuntu, Debian
precise Not vulnerable
(2:3.6.3-2ubuntu2.12)
trusty
Released (2:4.1.6+dfsg-1ubuntu2.14.04.11)
upstream
Released (4.3.3,4.2.7,4.1.22)
vivid
Released (2:4.1.13+dfsg-4ubuntu3.1)
wily
Released (2:4.1.17+dfsg-4ubuntu3.1)
xenial
Released (2:4.3.3+dfsg-1ubuntu1)
yakkety
Released (2:4.3.3+dfsg-1ubuntu1)
zesty
Released (2:4.3.3+dfsg-1ubuntu1)
Patches:
upstream: https://git.samba.org/?p=samba.git;a=commit;h=fb456954f332c07a645226d59b3b00ec252f8b26
upstream: https://git.samba.org/?p=samba.git;a=commit;h=bb1b783ee9d7259cfc6a1fe882f22189747f8684
samba4
Launchpad, Ubuntu, Debian
precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.3.3,4.2.7,4.1.22)
vivid Does not exist

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 5.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact Low
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L