lightdm before 0.9.6 writes in .dmrc and Xauthority files using root permissions while the files are in user controlled folders. A local user can overwrite root-owned files via a symlink, which can allow possible privilege escalation.
结论预警: CVE-2011-3349 综合评估为中等风险(41.3/100):CVSS 技术影响为高级,利用概率偏低(EPSS 0.36%) 强制指令: 梳理受影响资产并纳入修补计划。
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 | 0.05% | 0.36% | +0.31% |
| 2 | 2025-03-17 | 0.04% | 0.05% | +0.01% |
| 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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2011-3349 not yet assigned priority: Debian including 1 source packages (lightdm), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2011-3349 |
ubuntu
|
medium | CVE-2011-3349 medium priority: Ubuntu including 1 source packages (lightdm), 8 status rows across 8 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, upstream): DNE 3, not-affected 2, released 2, ignored 1. | https://ubuntu.com/security/CVE-2011-3349 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| lightdm_project | lightdm | < 0.9.6 | cpe:2.3:a:lightdm_project:lightdm:*:*:*:*:*:*:*:* |
| URL | 标签 |
|---|---|
| https://access.redhat.com/security/cve/cve-2011-3349 | Broken Link |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=639151 | Mailing List Third Party Advisory |
| https://bugs.launchpad.net/debian/+source/lightdm/+bug/834079 | Third Party Advisory |
| https://seclists.org/oss-sec/2011/q3/393 | Mailing List Third Party Advisory |
| https://security-tracker.debian.org/tracker/CVE-2011-3349 | Third Party Advisory |
| https://www.securityfocus.com/bid/50506 | Third Party Advisory VDB Entry |