kcheckpass passes a user-supplied argument to the pam_start function, often within a setuid environment, which allows local users to invoke any configured PAM stack, and possibly trigger unintended side effects, via an arbitrary valid PAM service name, a different vulnerability than CVE-2011-4122
Published Jan 6, 2012
6.9
MEDIUMCVSS 2.0
EPSS 0.33%
Description
kcheckpass passes a user-supplied argument to the pam_start function, often within a setuid environment, which allows local users to invoke any configured PAM stack, and possibly trigger unintended side effects, via an arbitrary valid PAM service name, a different vulnerability than CVE-2011-4122. NOTE: the vendor indicates that the possibility of resultant privilege escalation may be "a bit far-fetched."
Affected products
No data.
- n/a
No data.
No Red Hat product state for this CVE.
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.33% (0.00326) | 23.34th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.33% (0.00334) | 24.94th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00039) | 8.76th | 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 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (10)
- http://c-skills.blogspot.com/2011/11/openpam-trickery.html x_refsource_MISC
- http://openwall.com/lists/oss-security/2011/12/07/3 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/12/08/9 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/12/23/8 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/12/27/1 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/12/27/3 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2011/12/28/5 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2012/01/02/10 mailing-listx_refsource_MLIST
- http://openwall.com/lists/oss-security/2012/01/02/11 mailing-listx_refsource_MLIST
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72230 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://c-skills.blogspot.com/2011/11/openpam-trickery.html | x_refsource_MISC | |
| http://openwall.com/lists/oss-security/2011/12/07/3 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/12/08/9 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/12/23/8 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/12/27/1 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/12/27/3 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2011/12/28/5 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2012/01/02/10 | mailing-listx_refsource_MLIST | |
| http://openwall.com/lists/oss-security/2012/01/02/11 | mailing-listx_refsource_MLIST | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/72230 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.