CVE-2011-1011

Vulnerability Description

The seunshare_mount function in sandbox/seunshare.c in seunshare in certain Red Hat packages of policycoreutils 2.0.83 and earlier in Red Hat Enterprise Linux (RHEL) 6 and earlier, and Fedora 14 and earlier, mounts a new directory on top of /tmp without assigning root ownership and the sticky bit to this new directory, which allows local users to replace or delete arbitrary /tmp files, and consequently cause a denial of service or possibly gain privileges, by running a setuid application that relies on /tmp, as demonstrated by the ksu application.

CVSS Score

Affected Products

Related Weaknesses (CWE)

References

• http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0585.html
• http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056227.html
• http://openwall.com/lists/oss-security/2011/02/23/1
• http://openwall.com/lists/oss-security/2011/02/23/2
• http://pkgs.fedoraproject.org/gitweb/?p=policycoreutils.git%3Ba=blob%3Bf=policyc
• http://secunia.com/advisories/43415Vendor Advisory
• http://secunia.com/advisories/43844
• http://secunia.com/advisories/44034
• http://www.redhat.com/support/errata/RHSA-2011-0414.html
• http://www.securityfocus.com/bid/46510
• http://www.securitytracker.com/id?1025291
• http://www.vupen.com/english/advisories/2011/0701
• http://www.vupen.com/english/advisories/2011/0864
• https://bugzilla.redhat.com/show_bug.cgi?id=633544Patch
• https://exchange.xforce.ibmcloud.com/vulnerabilities/65641