Buffer overflow in the calc_coeff function in libass/ass_blur.c in libass before 0.13.4 allows remote attackers to cause a denial of service via unspecified vectors.
結論預警: CVE-2016-7970 綜合評估為高風險（65.2/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 4.75%，百分位 91%） 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 近一日 EPSS 上升 +3.44%，被利用關注度持續升高。 強制指令: 被利用機率偏高—請盤點暴露面並優先安排修補。
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。
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 | 1.31% | 4.75% | +3.44% |
| 2 | 2026-01-25 | 1.24% | 1.31% | +0.07% |
| 3 | 2025-03-30 | — | 1.24% | — |
完整 EPSS 歷史 （共 14 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 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2016-7970: 1 source package rows (libass); 9 state rows across 9 repos (3.10-main, 3.11-main, 3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 9, open 0. | https://security.alpinelinux.org/vuln/CVE-2016-7970 |
debian
|
not yet assigned | CVE-2016-7970 not yet assigned priority: Debian including 1 source packages (libass), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-7970 |
gentoo
|
normal | CVE-2016-7970: 1 GLSA(s) (201702-25), 1 atom(s) (media-libs/libass); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-7970 |
suse
|
medium | CVE-2016-7970 severity moderate: SUSE including 18 source package names (libass-devel-0.10.2-3.1, libass-devel-0.13.4-2.1, …), 34 product×package rows across 24 product lines (SUSE Linux Enterprise Desktop 12 SP1, SUSE Linux Enterprise Desktop 12 SP2, … (24 product lines)): Fixed 34. | https://www.suse.com/security/cve/CVE-2016-7970/ |
ubuntu
|
medium | CVE-2016-7970 medium priority: Ubuntu including 1 source packages (libass), 16 status rows across 16 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, precise, trusty, upstream, xenial, yakkety, zesty): not-affected 13, released 2, ignored 1. | https://ubuntu.com/security/CVE-2016-7970 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| fedoraproject | fedora | 23 | cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* |
| fedoraproject | fedora | 24 | cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* |
| fedoraproject | fedora | 25 | cpe:2.3:o:fedoraproject:fedora:25:*:*:*:*:*:*:* |
| libass_project | libass | <= 0.13.3 | cpe:2.3:a:libass_project:libass:*:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/10/05/2 | Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/93358 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1381960 | Issue Tracking Patch |
| https://github.com/libass/libass/pull/240/commits/08e754612019ed84d1db0d1fc4f5798248decd75 | Issue Tracking Patch Third Party Advisory |
| https://github.com/libass/libass/releases/tag/0.13.4 | Patch Release Notes Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KW6DNERYHPI5Y6SQYU3XKTVSCOWMIHUC/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7JJ2SGVOX6UQQIRMVC3QACJLKHE2PYN/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUOUOK3VULMMZTNSCRFCNPDAPDWAVK7X/ | |
| https://security.gentoo.org/glsa/201702-25 | Patch Third Party Advisory VDB Entry |