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…
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 10 days later
· 10 days later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.37% · top 69% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.9.
Weakness
Affected products
n/a
- affected n/a
References (15)
- https://bugzilla.redhat.com/show_bug.cgi?id=633544 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 44034 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 20110222 Developers should not rely on the stickiness of /tmp on Red Hat Linux (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 1025291 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://pkgs.fedoraproject.org/gitweb/?p=policycoreutils.git%3Ba=blob%3Bf=policycoreutils-rhat.patch%3Bh=d4db5bc06027de23d12a4b3f18fa6f9b1517df27%3Bhb=HEAD#l2197 (opens in a new tab)x_refsource_CONFIRMx_transferred
- policycoreutils-seunshare-symlink(65641) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 43844 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2011-0701 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- FEDORA-2011-3043 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- RHSA-2011:0414 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- ADV-2011-0864 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 46510 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [oss-security] 20110222 CVE Request (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 43415 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [oss-security] 20110223 Re: CVE Request (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1011)Record last updated .