util-linux: File name collision due to incorrect mkstemp use
Published Aug 23, 2017
9.8
CRITICALCVSS 3.1
EPSS 4.53%
Description
The mkostemp function in login-utils in util-linux when used incorrectly allows remote attackers to cause file name collision and possibly other attacks.
Affected products
No data.
- ≤ 2.26.2
- 2.27
No data.
Red Hat Enterprise Linux 5
util-linux
Not affected
Red Hat Enterprise Linux 6
util-linux-ng
Not affected
Red Hat Enterprise Linux 7
util-linux
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | util-linux | Not affected | n/a |
| Red Hat Enterprise Linux 6 | util-linux-ng | Not affected | n/a |
| Red Hat Enterprise Linux 7 | util-linux | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of util-linux as shipped with Red Hat Enterprise Linux 5 and 7. This issue does not affect the versions of util-linux-ng as shipped with Red Hat Enterprise Linux 6.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Dec 4, 2025 · SSVC 2.0.3
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 4.53% (0.04526) | 91.24th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.53% (0.04526) | 90.29th | v5 (v2026.06.15) |
| Mar 30, 2025 | 4.08% (0.04076) | 87.48th | v4 (v2025.03.14) |
| Mar 29, 2025 | 11.63% (0.11632) | 89.39th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.62% (0.03617) | 87.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.60% (0.00595) | 79.09th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.60% (0.00595) | 77.68th | v3 (v2023.03.01) |
| Jun 8, 2023 | 0.60% (0.00595) | 75.30th | v3 (v2023.03.01) |
| May 8, 2023 | 0.63% (0.00628) | 75.86th | v3 (v2023.03.01) |
| Apr 12, 2023 | 0.70% (0.00697) | 77.30th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.99% (0.00986) | 81.17th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (7)
- http://www.openwall.com/lists/oss-security/2015/08/24/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/76467 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-5224 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1256686 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/karelzak/util-linux/commit/bde91c85bdc77975155058276f99d2e0f5eab5a9 x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-5224
- https://www.cve.org/CVERecord?id=CVE-2015-5224
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2015/08/24/3 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/76467 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-5224 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1256686 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://github.com/karelzak/util-linux/commit/bde91c85bdc77975155058276f99d2e0f5eab5a9 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-5224 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-5224 |
Change history (0)
No recorded changes yet.