CVE-2011-3149
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam)...
CVE-2011-3149 is a low vulnerability (CVSS 2.1) in Linux-pam, published October 24, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.53%, the 45th percentile. Fixed in pam 1.1.3-5.
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
Exploit likelihood
What each source reports
NVD Score used
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
- Record
CVE-2011-3149- CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
- Record
CVE-2011-3149- Updated
- 2026-11-02
EUVDEUVD-2011-3116 No score
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
- Record
EUVD-2011-3116- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5wc7-486v-w943 No score
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam)...
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
- Record
GHSA-5wc7-486v-w943- Weakness
- CWE-119
- Updated
- 2026-11-02
OSVBELL-CVE-2011-3149
CVE-2011-3149 does not affect BellSoft software
- Record
BELL-CVE-2011-3149- CVSS 2.0
- 2.1 Low
AV:L/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
OSV No score
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
- Record
CVE-2011-3149- Updated
- 2026-11-02
OSVDEBIAN-CVE-2011-3149 No score
The _expand_arg function in the pam_env module (modules/pam_env/pam_env.c) in Linux-PAM (aka pam) before 1.1.5 does not properly handle when environment variable expansion can overflow, which allows local users to cause a denial of service (CPU consumption).
- Record
DEBIAN-CVE-2011-3149- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10405-1 No score
pam-1.3.0-3.4 on GA media
These are all security issues fixed in the pam-1.3.0-3.4 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10405-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
pamDebian:12 |
before 1.1.3-5 | 1.1.3-5 |
pamDebian:13 |
before 1.1.3-5 | 1.1.3-5 |
pamDebian:14 |
before 1.1.3-5 | 1.1.3-5 |
pamDebian:6.0 |
before 1.1.1-6.1+squeeze1, plus listed versions 1.1.1-6.1 |
1.1.1-6.1+squeeze1 |
pamRed Hat:enterprise_linux:6::client |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-debuginfoRed Hat:enterprise_linux:6::client |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-develRed Hat:enterprise_linux:6::client |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pamRed Hat:enterprise_linux:6::computenode |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-debuginfoRed Hat:enterprise_linux:6::computenode |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-develRed Hat:enterprise_linux:6::computenode |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
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| Package | Affected | Fixed |
|---|---|---|
pamRed Hat:enterprise_linux:6::server |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-debuginfoRed Hat:enterprise_linux:6::server |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-develRed Hat:enterprise_linux:6::server |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pamRed Hat:enterprise_linux:6::workstation |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-debuginfoRed Hat:enterprise_linux:6::workstation |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pam-develRed Hat:enterprise_linux:6::workstation |
before 0:1.1.1-13.el6 | 0:1.1.1-13.el6 |
pamopenSUSE:Tumbleweed |
before 1.3.0-3.4 | 1.3.0-3.4 |
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD, OSV |
References
security.gentoo.org/glsa/glsa-201206-31.xml
ubuntu.com/usn/USN-1237-1
secunia.com/advisories/46583
bugs.launchpad.net/ubuntu/+source/pam/+bug/874565
git.fedorahosted.org/git?p=linux-pam.git%3Ba=commitdiff%3Bh=109823cb621c900c07c4b6cdc99070d354d19444
Show 30 moreShow less
nvd.nist.gov/vuln/detail/CVE-2011-3149
github.com/advisories/GHSA-5wc7-486v-w943
docs.bell-sw.com/security/cves/CVE-2011-3149
security-tracker.debian.org/tracker/CVE-2011-3149
access.redhat.com/errata/RHSA-2013:0521
bugzilla.redhat.com/show_bug.cgi?id=588893
security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_0521.json
cve.org/CVERecord?id=CVE-2011-3148
suse.com/security/cve/CVE-2010-3430