Vulnerability in Red Hat Enterprise Linux
CVE-2011-1011
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.9 (Medium). Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.004 (29.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Red Hat Enterprise Linux — versions 3, 4, 5
- Red Hat Fedora — versions 6, 7, 8
- Red Hat Policycoreutils — versions 1.0, 1.1, 1.2
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Patch)
- secunia.com/advisories/44034 (third-party-advisory)
- archives.neohapsis.com/archives/fulldisclosure/2011-02/0585.html (mailing-list)
- www.securitytracker.com/id (vdb-entry)
- pkgs.fedoraproject.org/gitweb/
- exchange.xforce.ibmcloud.com/vulnerabilities/65641 (vdb-entry)
- secunia.com/advisories/43844 (third-party-advisory)
- www.vupen.com/english/advisories/2011/0701 (vdb-entry)
- lists.fedoraproject.org/pipermail/package-announce/2011-March/056227.html (vendor-advisory)
- www.redhat.com/support/errata/RHSA-2011-0414.html (vendor-advisory)