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Fencer Intel
medium 4.9

CVE-2010-4707 json

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 f…

published 15y ago modified 4mo ago also EUVD-2010-4672

cvss
4.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

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.

Patch / fix

  • pam Debian 14, Debian 13, Debian 12 1.1.3-1

debian advisories DEBIAN-CVE-2010-4707

  • pam RHEL 6 1.1.1-4.el6_0.1
  • pam RHEL 5 0.99.6.2-6.el5_5.2

red hat advisories RHSA-2010:0891RHSA-2010:0819

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2010-4707 updated cvss 2.1

pam: pam_xauth: Does not check if certain ACL file is a regular file

  • Red Hat Enterprise Linux 4 pam
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux (v. 5 server) pam 0.99.6.2-6.el5_5.2 Red Hat Enterprise Linux Desktop (v. 5 client) pam 0.99.6.2-6.el5_5.2
    fixed: vendor fix RHSA-2010:0819
  • Red Hat Enterprise Linux Desktop (v. 6) pam 1.1.1-4.el6_0.1 Red Hat Enterprise Linux Desktop Optional (v. 6) pam 1.1.1-4.el6_0.1
    fixed: vendor fix RHSA-2010:0891
  • Red Hat Enterprise Linux Desktop Workstation (v. 5 client) pam 0.99.6.2-6.el5_5.2
    fixed: vendor fix RHSA-2010:0819
  • Red Hat Enterprise Linux HPC Node (v. 6) pam 1.1.1-4.el6_0.1 Red Hat Enterprise Linux HPC Node Optional (v. 6) pam 1.1.1-4.el6_0.1 Red Hat Enterprise Linux Server (v. 6) pam 1.1.1-4.el6_0.1 Red Hat Enterprise Linux Workstation (v. 6) pam 1.1.1-4.el6_0.1
    fixed: vendor fix RHSA-2010:0891

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.36% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:C/I:N/A:N

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.