pam: pam_xauth: Does not check if certain ACL file is a regular file
Published Jan 24, 2011
4.9
MEDIUMCVSS 2.0
EPSS 0.36%
Description
The check_acl function in pam_xauth.c in the pam_xauth module in Linux-PAM (aka pam) 1.1.2 and earlier does not verify that a certain ACL file is a regular file, which might allow local users to cause a denial of service (resource consumption) via a special file.
Affected products
No data.
- ≤ 1.1.2
- 0.99.1.0
- 0.99.2.0
- 0.99.2.1
- 0.99.3.0
- 0.99.4.0
- 0.99.5.0
- 0.99.6.0
- 0.99.6.1
- 0.99.6.2
- 0.99.6.3
- 0.99.7.0
- 0.99.7.1
- 0.99.8.0
- 0.99.8.1
- 0.99.9.0
- 0.99.10.0
- 1.0.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.1.0
- 1.1.1
No data.
Red Hat Enterprise Linux 5
pam-0:0.99.6.2-6.el5_5.2
Fixed · RHSA-2010:0819
Red Hat Enterprise Linux 6
pam-0:1.1.1-4.el6_0.1
Fixed · RHSA-2010:0891
Red Hat Enterprise Linux 4
pam
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | pam-0:0.99.6.2-6.el5_5.2 | Fixed | RHSA-2010:0819 |
| Red Hat Enterprise Linux 6 | pam-0:1.1.1-4.el6_0.1 | Fixed | RHSA-2010:0891 |
| Red Hat Enterprise Linux 4 | pam | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The Red Hat Security Response Team has rated this issue as having low security impact. This issue was addressed in the PAM packages in Red Hat Enterprise Linux 5 via RHSA-2010:0819 and in Red Hat Enterprise Linux 6 via RHSA-2010:0891. A future update may correct this issue in the PAM packages in Red Hat Enterprise Linux 4.
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:L/Au:N/C:C/I:N/A:N
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 | 0.36% (0.00360) | 27.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.36% (0.00360) | 27.57th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00062) | 16.61th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://git.altlinux.org/people/ldv/packages/?p=pam.git%3Ba=commit%3Bh=Linux-PAM-1_1_2-2-gffe7058c70253d574b1963c7c93002bd410fddc9 x_refsource_CONFIRM
- http://openwall.com/lists/oss-security/2010/10/03/1 mailing-listx_refsource_MLISTPatch
- http://secunia.com/advisories/49711 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201206-31.xml vendor-advisoryx_refsource_GENTOO
- http://www.securityfocus.com/bid/46045 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2010-4707 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=672486 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/65036 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2010-4707
- https://www.cve.org/CVERecord?id=CVE-2010-4707
| Link | Providers | Tags |
|---|---|---|
| http://git.altlinux.org/people/ldv/packages/?p=pam.git%3Ba=commit%3Bh=Linux-PAM-1_1_2-2-gffe7058c70253d574b1963c7c93002bd410fddc9 | x_refsource_CONFIRM | |
| http://openwall.com/lists/oss-security/2010/10/03/1 | mailing-listx_refsource_MLISTPatch | |
| http://secunia.com/advisories/49711 | third-party-advisoryx_refsource_SECUNIA | |
| http://security.gentoo.org/glsa/glsa-201206-31.xml | vendor-advisoryx_refsource_GENTOO | |
| http://www.securityfocus.com/bid/46045 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/security/cve/CVE-2010-4707 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=672486 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/65036 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2010-4707 | ||
| https://www.cve.org/CVERecord?id=CVE-2010-4707 |
Change history (0)
No recorded changes yet.