CVE-2015-5252 Information

Description

vfs.c in smbd in Samba 3.x and 4.x before 4.1.22 4.2.x before 4.2.7 and 4.3.x before 4.3.3 when share names with certain substring relationships exist allows remote attackers to bypass intended file-access restrictions via a symlink that points outside of a share.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00017.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00046.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html http://www.debian.org/security/2016/dsa-3433 http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html http://www.securityfocus.com/bid/79733 http://www.securitytracker.com/id/1034493 http://www.ubuntu.com/usn/USN-2855-1 http://www.ubuntu.com/usn/USN-2855-2 https://bugzilla.redhat.com/show_bug.cgi?id=1290288 https://git.samba.org/?p=samba.git;a=commit;h=4278ef25f64d5fdbf432ff1534e275416ec9561e https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993 https://security.gentoo.org/glsa/201612-47 https://www.samba.org/samba/security/CVE-2015-5252.html

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

7.2