The pstm_exptmod function in MatrixSSL 3.8.6 and earlier does not properly perform modular exponentiation, which might allow remote attackers to predict the secret key via unspecified vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-6887.
結論預警: CVE-2016-8671 綜合評估為中等風險(43/100):CVSS 技術影響為中級,利用機率(EPSS 0.37%) 強制指令: 梳理受影響資產並納入修補計畫。
風險隨態勢動態變化;本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性;百分位表示該 CVE 在已評分漏洞中的相對排名(越高表示相對更嚴重)。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化(新 − 舊) |
|---|---|---|---|---|
| 1 | 2025-03-30 | 0.53% | 0.37% | -0.16% |
| 2 | 2025-03-29 | 0.37% | 0.53% | +0.16% |
| 3 | 2025-03-17 | — | 0.37% | — |
完整 EPSS 歷史 (共 7 筆)
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 5.9 | 3.0 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
ubuntu
|
medium | CVE-2016-8671 medium priority: Ubuntu including 1 source packages (matrixssl), 10 status rows across 10 suites (artful, bionic, cosmic, disco, precise, trusty, upstream, xenial, yakkety, zesty): DNE 8, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2016-8671 |
| URL | 標籤 |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/10/15/2 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/10/15/8 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/95439 | |
| https://blog.fuzzing-project.org/54-Update-on-MatrixSSL-miscalculation-CVE-2016-8671%2C-incomplete-fix-for-CVE-2016-6887.html |