The DynamicMetadataProvider class in saml/saml2/metadata/impl/DynamicMetadataProvider.cpp in OpenSAML-C in OpenSAML before 2.6.1 fails to properly configure itself with the MetadataFilter plugins and does not perform critical security checks such as signature verification, enforcement of validity periods, and other checks specific to deployments, aka CPPOST-105.
総合評価: CVE-2017-16853 は中リスク(57.2/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 1.40%、69 パーセンタイル) 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 | 0.67% | 1.40% | +0.73% |
| 2 | 2025-03-17 | 1.85% | 0.67% | -1.18% |
| 3 | 2024-12-17 | — | 1.85% | — |
EPSS の全履歴 (全 10 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 | 3.0 | HIGH |
|
2.2 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2017-16853 |
suse
|
high | CVE-2017-16853 severity important: SUSE including 20 source package names (libsaml-devel, libsaml-devel-2.5.5-3.3.1, …), 93 product×package rows across 34 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (34 product lines)): Fixed 55, Known Not Affected 38. | https://www.suse.com/security/cve/CVE-2017-16853/ |
ubuntu
|
medium | CVE-2017-16853 medium priority: Ubuntu including 1 source packages (opensaml2), 7 status rows across 7 suites (artful, bionic, cosmic, trusty, upstream, xenial, zesty): released 5, not-affected 2. | https://ubuntu.com/security/CVE-2017-16853 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| shibboleth | opensaml | < 2.6.1 | cpe:2.3:a:shibboleth:opensaml:*:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.securityfocus.com/bid/101898 | Third Party Advisory VDB Entry |
| https://bugs.debian.org/881856 | Issue Tracking Third Party Advisory |
| https://git.shibboleth.net/view/?p=cpp-opensaml.git%3Ba=commit%3Bh=6182b0acf2df670e75423c2ed7afe6950ef11c9d | |
| https://lists.debian.org/debian-lts-announce/2017/11/msg00024.html | |
| https://shibboleth.net/community/advisories/secadv_20171115.txt | Issue Tracking Vendor Advisory |
| https://www.debian.org/security/2017/dsa-4039 | Issue Tracking Third Party Advisory |