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TI-2011-02778 Aliases CVE-2011-3148GHSA-gh7c-55pq-pm8c

Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c…

Priority LOW 22CWE-119Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Partial · Partial · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.

Summary

Stack-based buffer overflow in the _assemble_line function in modules/pam_env/pam_env.c in Linux-PAM (aka pam) before 1.1.5 allows local users to cause a denial of service (crash) and possibly execute arbitrary code via a long string of white spaces at the beginning of the ~/.pam_environment file.

Why it matters now

EPSS 0.00696 53rd percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 26

CPEVersionsRoleVendor
cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:*up to 1.1.4VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.1.0:*:*:*:*:*:*:*0.99.1.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.2.0:*:*:*:*:*:*:*0.99.2.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.2.1:*:*:*:*:*:*:*0.99.2.1VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.3.0:*:*:*:*:*:*:*0.99.3.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.4.0:*:*:*:*:*:*:*0.99.4.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.5.0:*:*:*:*:*:*:*0.99.5.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.6.0:*:*:*:*:*:*:*0.99.6.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.6.1:*:*:*:*:*:*:*0.99.6.1VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.6.2:*:*:*:*:*:*:*0.99.6.2VulnerableLinux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:* Versions up to 1.1.4 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.1.0:*:*:*:*:*:*:* Versions 0.99.1.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.2.0:*:*:*:*:*:*:* Versions 0.99.2.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.2.1:*:*:*:*:*:*:* Versions 0.99.2.1 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.3.0:*:*:*:*:*:*:* Versions 0.99.3.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.4.0:*:*:*:*:*:*:* Versions 0.99.4.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.5.0:*:*:*:*:*:*:* Versions 0.99.5.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.6.0:*:*:*:*:*:*:* Versions 0.99.6.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.6.1:*:*:*:*:*:*:* Versions 0.99.6.1 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.6.2:*:*:*:*:*:*:* Versions 0.99.6.2 Vulnerable ·Linux-PAM
Show 16 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:linux-pam:linux-pam:0.99.6.3:*:*:*:*:*:*:*0.99.6.3VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.7.0:*:*:*:*:*:*:*0.99.7.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.7.1:*:*:*:*:*:*:*0.99.7.1VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.8.0:*:*:*:*:*:*:*0.99.8.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.8.1:*:*:*:*:*:*:*0.99.8.1VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.9.0:*:*:*:*:*:*:*0.99.9.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:0.99.10.0:*:*:*:*:*:*:*0.99.10.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.0.0:*:*:*:*:*:*:*1.0.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.0.1:*:*:*:*:*:*:*1.0.1VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.0.2:*:*:*:*:*:*:*1.0.2VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.0.3:*:*:*:*:*:*:*1.0.3VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.0.4:*:*:*:*:*:*:*1.0.4VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.1.0:*:*:*:*:*:*:*1.1.0VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.1.1:*:*:*:*:*:*:*1.1.1VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.1.2:*:*:*:*:*:*:*1.1.2VulnerableLinux-PAM
cpe:2.3:a:linux-pam:linux-pam:1.1.3:*:*:*:*:*:*:*1.1.3VulnerableLinux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.6.3:*:*:*:*:*:*:* Versions 0.99.6.3 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.7.0:*:*:*:*:*:*:* Versions 0.99.7.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.7.1:*:*:*:*:*:*:* Versions 0.99.7.1 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.8.0:*:*:*:*:*:*:* Versions 0.99.8.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.8.1:*:*:*:*:*:*:* Versions 0.99.8.1 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.9.0:*:*:*:*:*:*:* Versions 0.99.9.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:0.99.10.0:*:*:*:*:*:*:* Versions 0.99.10.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.0.1:*:*:*:*:*:*:* Versions 1.0.1 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.0.2:*:*:*:*:*:*:* Versions 1.0.2 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.0.3:*:*:*:*:*:*:* Versions 1.0.3 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.0.4:*:*:*:*:*:*:* Versions 1.0.4 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.1.2:*:*:*:*:*:*:* Versions 1.1.2 Vulnerable ·Linux-PAM
  • cpe:2.3:a:linux-pam:linux-pam:1.1.3:*:*:*:*:*:*:* Versions 1.1.3 Vulnerable ·Linux-PAM

Remediation

Red Hat 1 advisory

  • RHSA-2013:0521 Released 2013-02-20 · Red Hat rating Moderate
    pam security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Desktop (v. 6) pam-1.1.1-13.el6
    • Red Hat Enterprise Linux Desktop Optional (v. 6) pam-1.1.1-13.el6, pam-devel-1.1.1-13.el6
    • Red Hat Enterprise Linux HPC Node (v. 6) pam-1.1.1-13.el6
    • Red Hat Enterprise Linux HPC Node Optional (v. 6) pam-1.1.1-13.el6, pam-devel-1.1.1-13.el6
    • Red Hat Enterprise Linux Server (v. 6) pam-1.1.1-13.el6, pam-1.1.1-13.el6.ppc, pam-devel-1.1.1-13.el6 +1
    • Red Hat Enterprise Linux Workstation (v. 6) pam-1.1.1-13.el6, pam-devel-1.1.1-13.el6

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2013:0521
Red Hat Enterprise Linux Desktop Optional (v. 6)Fixed RHSA-2013:0521
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2013:0521
Red Hat Enterprise Linux HPC Node Optional (v. 6)Fixed RHSA-2013:0521
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2013:0521
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2013:0521
Not affected: 2 products
  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5

Timeline

  1. 2026-10-02 Threatist record created from CVE-2011-3148
  2. 2026-10-03 Alias added: GHSA-gh7c-55pq-pm8c

References

Advisory 2

Other 2

  • TI-2022-11097 The Linux-PAM package before 1.5.2-6.1 for openSUSE Tumbleweed allows authentication… CVSS 3.1CRITICAL 9.8
  • TI-2020-16865 Improper authentication in pam CVSS 3.1CRITICAL 9.8
  • TI-2015-02867 The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before… CVSS 3.0MEDIUM 6.5
  • TI-2014-02069 Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp… CVSS 2.0MEDIUM 5.8
  • TI-2009-00845 Integer signedness error in the _pam_StrTok function in libpam/pam_misc.c in Linux-PAM… CVSS 2.0MEDIUM 6.6
  • TI-2010-04431 The pam_env module in Linux-PAM (aka pam) 1.1.2 and earlier reads the .pam_environment… CVSS 2.0HIGH 7.2
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences