gdm: TOCTTOU race condition on /tmp/.X11-unix
Published Sep 10, 2013
6.9
MEDIUMCVSS 2.0
EPSS 0.37%
Description
GNOME Display Manager (gdm) before 2.21.1 allows local users to change permissions of arbitrary directories via a symlink attack on /tmp/.X11-unix/.
Affected products
No data.
- ≤ 2.21
- 0.7
- 1.0
- 2.0
- 2.2
- 2.13
- 2.14
- 2.14.1
- 2.14.2
- 2.14.3
- 2.14.4
- 2.14.5
- 2.14.6
- 2.14.7
- 2.14.8
- 2.14.9
- 2.14.10
- 2.14.11
- 2.14.12
- 2.15
- 2.16
- 2.16.1
- 2.16.2
- 2.17
- 2.18
- 2.18.1
- 2.18.2
- 2.18.3
- 2.19
- 2.19.1
- 2.19.2
- 2.19.3
- 2.19.4
- 2.20.0
- 2.20.1
- 2.20.2
- 2.20.3
- 2.20.4
- 2.20.5
- 2.20.6
- 2.20.7
- 2.20.8
- 2.20.9
- 2.20.10
No data.
Red Hat Enterprise Linux 5
gdm-1:2.16.0-59.el5_9.1
Fixed · RHSA-2013:1213
Red Hat Enterprise Linux 5
initscripts-0:8.45.42-2.el5_9.1
Fixed · RHSA-2013:1213
Red Hat Enterprise Linux 6
gdm
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | gdm-1:2.16.0-59.el5_9.1 | Fixed | RHSA-2013:1213 |
| Red Hat Enterprise Linux 5 | initscripts-0:8.45.42-2.el5_9.1 | Fixed | RHSA-2013:1213 |
| Red Hat Enterprise Linux 6 | gdm | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This flaw only affected GDM in Red Hat Enterprise Linux 5 and does not affect Red Hat Enterprise Linux 6.
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.37% (0.00371) | 28.61th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00371) | 28.64th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00031) | 5.69th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00890) | 28.64th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00890) | 26.62th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00890) | 12.04th | v2 (v2022.01.01) |
References (7)
- http://rhn.redhat.com/errata/RHSA-2013-1213.html vendor-advisoryx_refsource_REDHATVendor Advisory
- http://secunia.com/advisories/54661 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- https://access.redhat.com/security/cve/CVE-2013-4169 Vendor Advisory
- https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=988498 x_refsource_CONFIRMPatch
- https://bugzilla.redhat.com/show_bug.cgi?id=988498 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2013-4169
- https://www.cve.org/CVERecord?id=CVE-2013-4169
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2013-1213.html | vendor-advisoryx_refsource_REDHATVendor Advisory | |
| http://secunia.com/advisories/54661 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2013-4169 | Vendor Advisory | |
| https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=988498 | x_refsource_CONFIRMPatch | |
| https://bugzilla.redhat.com/show_bug.cgi?id=988498 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2013-4169 | ||
| https://www.cve.org/CVERecord?id=CVE-2013-4169 |
Change history (0)
No recorded changes yet.