In libssh2 before 1.9.0, kex_method_diffie_hellman_group_exchange_sha256_key_exchange in kex.c has an integer overflow that could lead to an out-of-bounds read in the way packets are read from the server. A remote attacker who compromises a SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server. This is related to an _libssh2_check_length mistake, and is different from the various issues fixed in 1.8.1, such as CVE-2019-3855.
総合評価: CVE-2019-13115 は悪用リスクが高い(75.8/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 11.66%、95 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 | 2026-06-15 | 42.40% | 11.66% | -30.74% |
| 2 | 2026-05-01 | 42.82% | 42.40% | -0.42% |
| 3 | 2025-11-21 | — | 42.82% | — |
EPSS の全履歴 (全 22 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 |
|---|---|---|---|---|---|---|
| 8.1 | 3.1 | HIGH |
|
2.8 | 5.2 | [email protected] |
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2019-13115: 1 source package rows (libssh2); 15 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 5. | https://security.alpinelinux.org/vuln/CVE-2019-13115 |
debian
|
not yet assigned | CVE-2019-13115 not yet assigned priority: Debian including 1 source packages (libssh2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2019-13115 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2019-13115 |
suse
|
medium | CVE-2019-13115 severity moderate: SUSE including 4 source package names (libssh2-1, libssh2-1-32bit, libssh2-devel, libssh2_org), 115 product×package rows across 50 product lines (Magnum Orchestration 7, SLES for SAP Applications 11 SP3, … (50 product lines)): Known Not Affected 115. | https://www.suse.com/security/cve/CVE-2019-13115/ |
ubuntu
|
medium | CVE-2019-13115 medium priority: Ubuntu including 1 source packages (libssh2), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 10, ignored 4, released 3, needed 2. | https://ubuntu.com/security/CVE-2019-13115 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| libssh2 | libssh2 | < 1.9.0 | cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| fedoraproject | fedora | 29 | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
| netapp | cloud_backup | — | cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* |
| netapp | e-series_santricity_os_controller | >= 11.0.0, <= 11.70.1 | cpe:2.3:a:netapp:e-series_santricity_os_controller:*:*:*:*:*:*:*:* |
| netapp | ontap_select_deploy_administration_utility | — | cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* |
| f5 | traffix_systems_signaling_delivery_controller | >= 5.0.0, <= 5.1.0 | cpe:2.3:a:f5:traffix_systems_signaling_delivery_controller:*:*:*:*:*:*:*:* |