Crypto++ (aka cryptopp and libcrypto++) 5.6.4 contained a bug in its ASN.1 BER decoding routine. The library will allocate a memory block based on the length field of the ASN.1 object. If there is not enough content octets in the ASN.1 object, then the function will fail and the memory block will be zeroed even if its unused. There is a noticeable delay during the wipe for a large allocation.
结论预警: CVE-2016-9939 综合评估为中等风险(59.7/100):CVSS 技术影响为高级,利用概率(EPSS 4.20%) 强制指令: 梳理受影响资产并纳入修补计划。
风险随态势动态变化;本站持续评估并同步更新本页展示内容。
EPSS 日更估计相对被利用可能性;百分位表示该 CVE 在已评分漏洞中的相对排名(越高表示相对更严重)。
| # | 日期 | 旧 EPSS 分数 | 新 EPSS 分数 | 变化(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 5.92% | 4.20% | -1.72% |
| 2 | 2025-03-30 | 26.45% | 5.92% | -20.54% |
| 3 | 2025-03-29 | — | 26.45% | — |
完整 EPSS 历史 (共 7 条)
该 CVE 的 CVSS 指标。
| 底座分 | 版本 | 严重度 | 向量 | 可利用性 | 影响 | 分数来源 |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-9939 not yet assigned priority: Debian including 1 source packages (libcrypto++), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-9939 |
ubuntu
|
low | CVE-2016-9939 low priority: Ubuntu including 1 source packages (libcrypto++), 8 status rows across 8 suites (artful, bionic, precise, trusty, upstream, xenial, yakkety, zesty): not-affected 3, released 3, ignored 2. | https://ubuntu.com/security/CVE-2016-9939 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| cryptopp | crypto\+\+ | 5.6.4 | cpe:2.3:a:cryptopp:crypto\+\+:5.6.4:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| URL | 标签 |
|---|---|
| http://www.debian.org/security/2016/dsa-3748 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2016/12/12/7 | Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/94854 | Third Party Advisory VDB Entry |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7IL5A6465IEPW5GAWGXB2ENJPFYVWTJM/ |