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).
结论预警: CVE-2011-3149 综合评估为低风险（23/100）：CVSS 技术影响为低级，利用概率偏低（EPSS 0.53%） 强制指令: 持续跟踪利用情报与 EPSS 变化，并适时复评优先级。
风险随态势动态变化；本站持续评估并同步更新本页展示内容。
EPSS 日更估计相对被利用可能性；百分位表示该 CVE 在已评分漏洞中的相对排名（越高表示相对更严重）。
| # | 日期 | 旧 EPSS 分数 | 新 EPSS 分数 | 变化（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.06% | 0.53% | +0.47% |
| 2 | 2025-03-17 | 0.04% | 0.06% | +0.02% |
| 3 | 2023-03-07 | — | 0.04% | — |
完整 EPSS 历史 （共 4 条）
该 CVE 的 CVSS 指标。
| 底座分 | 版本 | 严重度 | 向量 | 可利用性 | 影响 | 分数来源 |
|---|---|---|---|---|---|---|
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2011-3149 not yet assigned priority: Debian including 1 source packages (pam), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2011-3149 |
gentoo
|
high | CVE-2011-3149: 1 GLSA(s) (201206-31), 1 atom(s) (sys-libs/pam); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-3149 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2011-3149 |
suse
|
low | CVE-2011-3149 severity low: SUSE including 57 source package names (pam-1.0.4-0.7.1, pam-1.1.5-0.10.17, …), 88 product×package rows across 34 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (34 product lines)): Fixed 88. | https://www.suse.com/security/cve/CVE-2011-3149/ |
ubuntu
|
medium | CVE-2011-3149 medium priority: Ubuntu including 1 source packages (pam), 6 status rows across 6 suites (hardy, lucid, maverick, natty, oneiric, upstream): released 5, needs-triage 1. | https://ubuntu.com/security/CVE-2011-3149 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| linux-pam | linux-pam | <= 1.1.4 | cpe:2.3:a:linux-pam:linux-pam:*:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.1.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.1.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.2.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.2.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.2.1 | cpe:2.3:a:linux-pam:linux-pam:0.99.2.1:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.3.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.3.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.4.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.4.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.5.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.5.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.6.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.6.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.6.1 | cpe:2.3:a:linux-pam:linux-pam:0.99.6.1:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.6.2 | cpe:2.3:a:linux-pam:linux-pam:0.99.6.2:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.6.3 | cpe:2.3:a:linux-pam:linux-pam:0.99.6.3:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.7.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.7.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.7.1 | cpe:2.3:a:linux-pam:linux-pam:0.99.7.1:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.8.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.8.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.8.1 | cpe:2.3:a:linux-pam:linux-pam:0.99.8.1:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.9.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.9.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 0.99.10.0 | cpe:2.3:a:linux-pam:linux-pam:0.99.10.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.0.0 | cpe:2.3:a:linux-pam:linux-pam:1.0.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.0.1 | cpe:2.3:a:linux-pam:linux-pam:1.0.1:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.0.2 | cpe:2.3:a:linux-pam:linux-pam:1.0.2:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.0.3 | cpe:2.3:a:linux-pam:linux-pam:1.0.3:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.0.4 | cpe:2.3:a:linux-pam:linux-pam:1.0.4:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.1.0 | cpe:2.3:a:linux-pam:linux-pam:1.1.0:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.1.1 | cpe:2.3:a:linux-pam:linux-pam:1.1.1:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.1.2 | cpe:2.3:a:linux-pam:linux-pam:1.1.2:*:*:*:*:*:*:* |
| linux-pam | linux-pam | 1.1.3 | cpe:2.3:a:linux-pam:linux-pam:1.1.3:*:*:*:*:*:*:* |