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.
総合評価: CVE-2005-4890 は公開エクスプロイトあり(57.9/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.14%、33 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-02-19 | 0.18% | 0.14% | -0.05% |
| 2 | 2026-02-18 | 0.14% | 0.18% | +0.05% |
| 3 | 2025-12-28 | — | 0.14% | — |
EPSS の全履歴 (全 12 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 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 |
| ベンダー | 製品 | バージョン | 生の 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 | タグ |
|---|---|
| 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 |