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.
Key facts
- CVSS score
- 6.9 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:L/AC:M/Au:N/C:C/I:C/A:C- Weakness (CWE)
- CWE-264
- EPSS score
- 0.4% (31th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1028)
- Published
- February 24, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1028 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / enterprise linux
- redhat / fedora
- redhat / fedora
- redhat / fedora
- redhat / fedora
- redhat / fedora
- redhat / fedora
- redhat / fedora
- redhat / fedora
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
- redhat / policycoreutils
and 220 more…
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=policycoreutils-rhat.patch%3Bh=d4db5bc06027de23d12a4b3f18fa6f9b1517df27%3Bhb=HEAD#l2197
- http://secunia.com/advisories/43415(Vendor 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=633544(Patch)
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65641
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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