vfs.c in smbd in Samba 3.x and 4.x before 4.1.22,...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
References
- http://www.securityfocus.com/bid/79733
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174391.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00042.html
- http://www.ubuntu.com/usn/USN-2855-2
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00019.html
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00020.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1290288
- http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00032.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00046.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-December/174076.html
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00047.html
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05115993
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=4278ef25f64d5fdbf432ff1534e275416ec9561e
- http://www.securitytracker.com/id/1034493
- http://www.debian.org/security/2016/dsa-3433
- http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00048.html
- http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
- https://security.gentoo.org/glsa/201612-47
- https://www.samba.org/samba/security/CVE-2015-5252.html
- http://www.ubuntu.com/usn/USN-2855-1
- http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00033.html
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CVSS Vectors
Weaknesses (CWE)
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MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.