There is a possible tty hijacking in shadow 4.x before 4.1.5 and sudo 1.x before 1.7.4 via "su - user -c program". The user session can be escaped to the parent session by using the TIOCSTI ioctl to push characters into the input buffer to be read by the next process.
結論預警: CVE-2005-4890 綜合評估為高可利用風險（62.5/100）：CVSS 技術影響為高級，利用機率偏低（EPSS 0.64%） 核心證據: 已收錄 1 筆公開利用參考（Exploit-DB）。 強制指令: 存在公開利用—請盤點暴露面、落實緩解措施並優先修補。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
| EDB-ID | 來源 | 類型 | 公開時間 | 連結 |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.23% | 0.64% | +0.41% |
| 2 | 2026-06-07 | 0.14% | 0.23% | +0.09% |
| 3 | 2026-02-19 | — | 0.14% | — |
完整 EPSS 歷史 （共 14 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 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
|
low | CVE-2005-4890 low priority: Debian including 2 source packages (shadow, sudo), 10 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 10. | https://security-tracker.debian.org/tracker/CVE-2005-4890 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2005-4890 |
suse
|
medium | CVE-2005-4890 severity moderate: SUSE including 1 source package names (coreutils), 1 product×package rows across 1 product lines (SUSE Linux Enterprise Point of Service 11 SP3): Known Not Affected 1. | https://www.suse.com/security/cve/CVE-2005-4890/ |
ubuntu
|
low | CVE-2005-4890 low priority: Ubuntu including 2 source packages (shadow, sudo), 50 status rows across 25 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hardy, hirsute, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 34, ignored 14, released 2. | https://ubuntu.com/security/CVE-2005-4890 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| debian | shadow | >= 4.0.0, <= 4.1.5 | cpe:2.3:a:debian:shadow:*:*:*:*:*:*:*:* |
| sudo_project | sudo | >= 1.3.0, <= 1.7.4 | cpe:2.3:a:sudo_project:sudo:*:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 4 | cpe:2.3:o:redhat:enterprise_linux:4:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 5 | cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 6.0 | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://www.openwall.com/lists/oss-security/2012/11/06/8 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2013/05/20/3 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2013/11/28/10 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2013/11/29/5 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2014/10/20/9 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2014/10/21/1 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2014/12/15/5 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/02/25/6 | Exploit Mailing List Third Party Advisory |
| https://access.redhat.com/security/cve/cve-2005-4890 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2005-4890 | Issue Tracking Third Party Advisory |
| https://security-tracker.debian.org/tracker/CVE-2005-4890 | Third Party Advisory |