policycoreutils: insecure temporary directory handling in seunshare
Published Feb 24, 2011
6.9
MEDIUMCVSS 2.0
EPSS 0.37%
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.
Affected products
No data.
- ≤ 2.0.83
- 1.0
- 1.1
- 1.2
- 1.4
- 1.6
- 1.8
- 1.10
- 1.12
- 1.14
- 1.16
- 1.18
- 1.20
- 1.21.1
- 1.21.2
- 1.21.3
- 1.21.4
- 1.21.5
- 1.21.6
- 1.21.7
- 1.21.8
- 1.21.9
- 1.21.10
- 1.21.11
- 1.21.12
- 1.21.13
- 1.21.14
- 1.21.15
- 1.21.16
- 1.21.17
- 1.21.18
- 1.21.19
- 1.21.20
- 1.21.21
- 1.21.22
- 1.22
- 1.23.1
- 1.23.2
- 1.23.3
- 1.23.4
- 1.23.5
- 1.23.6
- 1.23.7
- 1.23.8
- 1.23.9
- 1.23.10
- 1.23.11
- 1.24
- 1.25.1
- 1.25.2
- 1.25.3
- 1.25.4
- 1.25.5
- 1.25.6
- 1.25.7
- 1.25.8
- 1.25.9
- 1.26
- 1.27.1
- 1.27.2
- 1.27.3
- 1.27.4
- 1.27.5
- 1.27.6
- 1.27.7
- 1.27.8
- 1.27.9
- 1.27.10
- 1.27.11
- 1.27.12
- 1.27.13
- 1.27.14
- 1.27.15
- 1.27.16
- 1.27.17
- 1.27.18
- 1.27.19
- 1.27.20
- 1.27.21
- 1.27.22
- 1.27.23
- 1.27.24
- 1.27.25
- 1.27.26
- 1.27.27
- 1.27.28
- 1.27.29
- 1.27.30
- 1.27.31
- 1.27.32
- 1.27.33
- 1.27.34
- 1.27.35
- 1.27.36
- 1.27.37
- 1.28
- 1.29.1
- 1.29.2
- 1.29.3
- 1.29.4
- 1.29.5
- 1.29.6
- 1.29.7
- 1.29.8
- 1.29.9
- 1.29.10
- 1.29.11
- 1.29.12
- 1.29.13
- 1.29.14
- 1.29.15
- 1.29.16
- 1.29.17
- 1.29.18
- 1.29.19
- 1.29.20
- 1.29.21
- 1.29.22
- 1.29.23
- 1.29.24
- 1.29.25
- 1.29.26
- 1.29.27
- 1.29.28
- 1.30
- 1.30.1
- 1.30.2
- 1.30.3
- 1.30.4
- 1.30.5
- 1.30.6
- 1.30.7
- 1.30.8
- 1.30.9
- 1.30.10
- 1.30.11
- 1.30.12
- 1.30.13
- 1.30.14
- 1.30.15
- 1.30.16
- 1.30.17
- 1.30.18
- 1.30.19
- 1.30.20
- 1.30.21
- 1.30.22
- 1.30.23
- 1.30.24
- 1.30.25
- 1.30.26
- 1.30.27
- 1.30.28
- 1.30.29
- 1.30.30
- 1.30.31
- 1.32
- 1.33.1
- 1.33.2
- 1.33.3
- 1.33.4
- 1.33.5
- 1.33.6
- 1.33.7
- 1.33.8
- 1.33.9
- 1.33.10
- 1.33.11
- 1.33.12
- 1.33.13
- 1.33.14
- 1.33.15
- 1.33.16
- 1.34.0
- 1.34.1
- 2.0.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.7
- 2.0.8
- 2.0.9
- 2.0.10
- 2.0.11
- 2.0.12
- 2.0.13
- 2.0.14
- 2.0.15
- 2.0.16
- 2.0.17
- 2.0.18
- 2.0.19
- 2.0.20
- 2.0.21
- 2.0.22
- 2.0.23
- 2.0.24
- 2.0.25
- 2.0.26
- 2.0.27
- 2.0.28
- 2.0.29
- 2.0.30
- 2.0.31
- 2.0.32
- 2.0.33
- 2.0.34
- 2.0.35
- 2.0.36
- 2.0.37
- 2.0.38
- 2.0.39
- 2.0.40
- 2.0.41
- 2.0.42
- 2.0.43
- 2.0.44
- 2.0.45
- 2.0.46
- 2.0.47
- 2.0.48
- 2.0.49
- 2.0.50
- 2.0.51
- 2.0.52
- 2.0.53
- 2.0.54
- 2.0.55
- 2.0.56
- 2.0.57
- 2.0.58
- 2.0.59
- 2.0.60
- 2.0.61
- 2.0.62
- 2.0.63
- 2.0.64
- 2.0.65
- 2.0.66
- 2.0.67
- 2.0.68
- 2.0.69
- 2.0.70
- 2.0.71
- 2.0.72
- 2.0.73
- 2.0.74
- 2.0.75
- 2.0.76
- 2.0.77
- 2.0.78
- 2.0.79
- 2.0.80
- 2.0.81
- 2.0.82
- 3
- 4
- 5
- 6.0
- 6
- 7
- 8
- 9
- 10
- 12
- 13
- 14
No data.
Red Hat Enterprise Linux 6
policycoreutils-0:2.0.83-19.8.el6_0
Fixed · RHSA-2011:0414
Red Hat Enterprise Linux 6
selinux-policy-0:3.7.19-54.el6_0.5
Fixed · RHSA-2011:0414
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | policycoreutils-0:2.0.83-19.8.el6_0 | Fixed | RHSA-2011:0414 |
| Red Hat Enterprise Linux 6 | selinux-policy-0:3.7.19-54.el6_0.5 | Fixed | RHSA-2011:0414 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00368) | 28.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00368) | 28.37th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00044) | 10.70th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (18)
- http://archives.neohapsis.com/archives/fulldisclosure/2011-02/0585.html mailing-listx_refsource_FULLDISC
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056227.html vendor-advisoryx_refsource_FEDORA
- http://openwall.com/lists/oss-security/2011/02/23/1 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/02/23/2 mailing-listx_refsource_MLIST
- http://pkgs.fedoraproject.org/gitweb/?p=policycoreutils.git%3Ba=blob%3Bf=policycoreutils-rhat.patch%3Bh=d4db5bc06027de23d12a4b3f18fa6f9b1517df27%3Bhb=HEAD#l2197 x_refsource_CONFIRM
- http://secunia.com/advisories/43415 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/43844 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/44034 third-party-advisoryx_refsource_SECUNIA
- http://www.redhat.com/support/errata/RHSA-2011-0414.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/46510 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025291 vdb-entryx_refsource_SECTRACK
- http://www.vupen.com/english/advisories/2011/0701 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2011/0864 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2011-1011 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=633544 x_refsource_CONFIRMPatchIssue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65641 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2011-1011
- https://www.cve.org/CVERecord?id=CVE-2011-1011
Change history (0)
No recorded changes yet.