client/mount.cifs.c in mount.cifs in smbfs in Samba 3.0.22, 3.0.28a, 3.2.3, 3.3.2, 3.4.0, and 3.4.5 allows local users to mount a CIFS share on an arbitrary mountpoint, and gain privileges, via a symlink attack on the mountpoint directory file.

References

• https://nvd.nist.gov/vuln/detail/CVE-2010-0787
• https://bugzilla.redhat.com/show_bug.cgi?id=532940
• https://bugzilla.redhat.com/show_bug.cgi?id=558833
• https://bugzilla.samba.org/show_bug.cgi?id=6853
• https://exchange.xforce.ibmcloud.com/vulnerabilities/55944
• http://git.samba.org/?p=samba.git;a=commit;h=3ae5dac462c4ed0fb2cd94553583c56fce2f9d80
• http://git.samba.org/?p=samba.git;a=commit;h=a0c31ec1c8d1220a5884e40d9ba6b191a04a24d5
• http://lists.fedoraproject.org/pipermail/package-announce/2010-January/034444.html
• http://lists.fedoraproject.org/pipermail/package-announce/2010-January/034470.html
• http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
• http://secunia.com/advisories/38286
• http://secunia.com/advisories/38308
• http://secunia.com/advisories/38357
• http://security.gentoo.org/glsa/glsa-201206-29.xml
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:090
• http://www.securityfocus.com/bid/37992
• http://www.securityfocus.com/bid/39898
• http://www.ubuntu.com/usn/USN-893-1
• http://www.vupen.com/english/advisories/2010/1062