An exploitable heap overflow vulnerability exists in the Fiddle::Function.new "initialize" function functionality of Ruby. In Fiddle::Function.new "initialize" heap buffer "arg_types" allocation is made based on args array length. Specially constructed object passed as element of args array can increase this array size after mentioned allocation and cause heap overflow.
結論預警: CVE-2016-2339 綜合評估為高可利用風險(86.2/100):CVSS 技術影響為嚴重級,利用機率偏高(EPSS 5.19%,百分位 91%) 核心證據: 已收錄 1 筆公開利用參考(Exploit-DB)。 強制指令: 存在公開利用—請盤點暴露面、落實緩解措施並優先修補。
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。
| EDB-ID | 來源 | 類型 | 公開時間 | 連結 |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-06-30 | 5.14% | 5.19% | +0.04% |
| 2 | 2026-06-15 | 0.83% | 5.14% | +4.31% |
| 3 | 2026-05-27 | — | 0.83% | — |
完整 EPSS 歷史 (共 11 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.0 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2016-2339 |
suse
|
medium | CVE-2016-2339 severity moderate: SUSE including 26 source package names (4.0.0:libruby2_1-2_1-2.1.9-15.1, 4.0.0:ruby2.1-2.1.9-15.1, …), 193 product×package rows across 67 product lines (Container caasp/v4/velum, HPE Helion OpenStack 8, … (67 product lines)): Fixed 167, Known Not Affected 26. | https://www.suse.com/security/cve/CVE-2016-2339/ |
ubuntu
|
low | CVE-2016-2339 low priority: Ubuntu including 4 source packages (ruby1.8, ruby1.9.1, ruby2.0, ruby2.3), 24 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): DNE 13, needs-triage 4, not-affected 3, ignored 2, released 2. | https://ubuntu.com/security/CVE-2016-2339 |
| URL | 標籤 |
|---|---|
| http://www.securityfocus.com/bid/91234 | |
| http://www.talosintelligence.com/reports/TALOS-2016-0034/ | Exploit Technical Description Third Party Advisory VDB Entry |
| https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html |