GHSA-wcpp-3x59-h8vp · 深刻度: medium — Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This...
Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This vulnerability affects the GSSAPI patches added by various Linux distributions and does not affect the OpenSSH upstream project itself. The usage of sshpkt_disconnect() on an error, which does not terminate the process, allows an attacker to send an unexpected GSSAPI message type during the GSSAPI key exchange to the server, which will call the underlying function and continue the execution of the program without setting the related connection variables. As the variables are not initialized to NULL the code later accesses those uninitialized variables, accessing random memory, which could lead to undefined behavior. The recommended workaround is to use ssh_packet_disconnect() instead, which does terminate the process. The impact of the vulnerability depends heavily on the compiler flag hardening configuration.
総合評価: CVE-2026-3497 は中リスク(56.7/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 1.96%、78 パーセンタイル) 根拠: 直近 1 日で EPSS が +1.90% 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: 影響資産を整理し、修補計画に組み込んでください。
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。
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 | 0.06% | 1.96% | +1.90% |
| 2 | 2026-06-03 | 0.03% | 0.06% | +0.03% |
| 3 | 2026-03-21 | — | 0.03% | — |
EPSS の全履歴 (全 4 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 |
|---|---|---|---|---|---|---|
| 6.9 | 4.0 | MEDIUM |
|
— | — | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
GHSA-wcpp-3x59-h8vp · 深刻度: medium — Vulnerability in the OpenSSH GSSAPI delta included in various Linux distributions. This...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2026-3497 not yet assigned priority: Debian including 1 source packages (openssh), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-3497 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2026-3497 |
suse
|
medium | CVE-2026-3497 severity moderate: SUSE including 18 source package names (openssh, openssh-8.0p1-28.el8_10, …), 18 product×package rows across 3 product lines (SUSE Liberty Linux 8, SUSE Liberty Linux 9, SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE): Fixed 14, Known Not Affected 4. | https://www.suse.com/security/cve/CVE-2026-3497/ |
ubuntu
|
medium | CVE-2026-3497 medium priority: Ubuntu including 2 source packages (openssh, openssh-ssh1), 14 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): ignored 6, released 4, not-affected 3, needs-triage 1. | https://ubuntu.com/security/CVE-2026-3497 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| canonical | ubuntu_linux | 25.10 | cpe:2.3:a:canonical:ubuntu_linux:25.10:*:*:*:*:*:*:* |
| openbsd | openssh | — | cpe:2.3:a:openbsd:openssh:-:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 20.04 | cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 22.04 | cpe:2.3:o:canonical:ubuntu_linux:22.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 24.04 | cpe:2.3:o:canonical:ubuntu_linux:24.04:*:*:*:lts:*:*:* |
| debian | debian_linux | 11.0 | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 9.0 | cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 10.0 | cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://ubuntu.com/security/CVE-2026-3497 | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2026/03/12/3 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/12/3 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/14/3 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/14/4 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/18/2 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/18/4 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/18/5 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2026/03/18/7 | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2026/04/msg00014.html | Mailing List Third Party Advisory |