The search_make_new function in evdns.c in libevent before 2.1.6-beta allows attackers to cause a denial of service (out-of-bounds read) via an empty hostname.
結論預警: CVE-2016-10197 綜合評估為高可利用風險(80.2/100):CVSS 技術影響為高級,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)。 近一日 EPSS 上升 +3.21%,被利用關注度持續升高。 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 | 2026-06-15 | 1.99% | 5.19% | +3.21% |
| 2 | 2026-05-27 | 2.42% | 1.99% | -0.43% |
| 3 | 2026-03-29 | — | 2.42% | — |
完整 EPSS 歷史 (共 12 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2016-10197: 1 source package rows (libevent); 10 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 0. | https://security.alpinelinux.org/vuln/CVE-2016-10197 |
debian
|
not yet assigned | CVE-2016-10197 not yet assigned priority: Debian including 1 source packages (libevent), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-10197 |
gentoo
|
high | CVE-2016-10197: 2 GLSA(s) (201705-01, 201802-03), 3 atom(s) (dev-libs/libevent, www-client/firefox, www-client/firefox-bin); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-10197 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2016-10197 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2016-10197/ |
ubuntu
|
low | CVE-2016-10197 low priority: Ubuntu including 3 source packages (firefox, libevent, thunderbird), 17 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): released 15, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2016-10197 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| libevent_project | libevent | <= 2.1.5 | cpe:2.3:a:libevent_project:libevent:*:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://www.debian.org/security/2017/dsa-3789 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2017/01/31/17 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2017/02/02/7 | Mailing List Third Party Advisory |
| http://www.securityfocus.com/bid/96014 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1038320 | Broken Link Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2017:1104 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:1106 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2017:1201 | Third Party Advisory |
| https://github.com/libevent/libevent/blob/release-2.1.6-beta/ChangeLog | Release Notes Third Party Advisory |
| https://github.com/libevent/libevent/commit/ec65c42052d95d2c23d1d837136d1cf1d9ecef9e | Patch Third Party Advisory |
| https://github.com/libevent/libevent/issues/332 | Exploit Issue Tracking Third Party Advisory |
| https://security.gentoo.org/glsa/201705-01 | Third Party Advisory |