plugins/preauth/pkinit/pkinit_crypto_openssl.c in MIT Kerberos 5 (aka krb5) through 1.15.2 mishandles Distinguished Name (DN) fields, which allows remote attackers to execute arbitrary code or cause a denial of service (buffer overflow and application crash) in situations involving untrusted X.509 data, related to the get_matching_data and X509_NAME_oneline_ex functions. NOTE: this has security relevance only in use cases outside of the MIT Kerberos distribution, e.g., the use of get_matching_data in KDC certauth plugin code that is specific to Red Hat.
総合評価: CVE-2017-15088 は高リスク(77.2/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 8.37%、94 パーセンタイル) 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +7.09% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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。
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 | 2026-06-15 | 1.28% | 8.37% | +7.09% |
| 2 | 2026-05-30 | 3.70% | 1.28% | -2.42% |
| 3 | 2026-04-05 | — | 3.70% | — |
EPSS の全履歴 (全 26 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2017-15088: 1 source package rows (krb5); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 0. | https://security.alpinelinux.org/vuln/CVE-2017-15088 |
debian
|
unimportant | CVE-2017-15088 unimportant priority: Debian including 1 source packages (krb5), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2017-15088 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2017-15088 |
suse
|
high | CVE-2017-15088 severity important: SUSE including 53 source package names (0.9.1:krb5-1.12.5-40.16.1, 1.0.0:krb5-1.12.5-40.16.1, …), 137 product×package rows across 39 product lines (Container caasp/v4/default-http-backend, Container caasp/v4/dnsmasq-nanny, … (39 product lines)): Fixed 126, Known Not Affected 11. | https://www.suse.com/security/cve/CVE-2017-15088/ |
ubuntu
|
negligible | CVE-2017-15088 negligible priority: Ubuntu including 1 source packages (krb5), 21 status rows across 21 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial, zesty): not-affected 16, ignored 2, released 2, needed 1. | https://ubuntu.com/security/CVE-2017-15088 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| mit | kerberos_5 | <= 1.15.2 | cpe:2.3:a:mit:kerberos_5:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.securityfocus.com/bid/101594 | Third Party Advisory VDB Entry |
| https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=871698 | Issue Tracking Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1504045 | Issue Tracking Patch Third Party Advisory |
| https://github.com/krb5/krb5/commit/fbb687db1088ddd894d975996e5f6a4252b9a2b4 | Issue Tracking Patch Third Party Advisory |
| https://github.com/krb5/krb5/pull/707 | Patch Third Party Advisory |