Integer overflow in the index.c:read_entry() function while decompressing a compressed prefix length in libgit2 before v0.26.2 allows an attacker to cause a denial of service (out-of-bounds read) via a crafted repository index file.
結論預警: CVE-2018-8098 綜合評估為中等風險(50.9/100):CVSS 技術影響為中級,利用機率(EPSS 1.42%) 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 | 2026-06-15 | 0.74% | 1.42% | +0.68% |
| 2 | 2025-11-21 | 0.50% | 0.74% | +0.24% |
| 3 | 2025-11-18 | — | 0.50% | — |
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 |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2018-8098: 1 source package rows (libgit2); 4 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 4. | https://security.alpinelinux.org/vuln/CVE-2018-8098 |
debian
|
low | CVE-2018-8098 low priority: Debian including 1 source packages (libgit2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-8098 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2018-8098 |
suse
|
medium | CVE-2018-8098 severity moderate: SUSE including 28 source package names (libgit2, libgit2-1_1-1.1.1-1.2, …), 66 product×package rows across 30 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (30 product lines)): Known Not Affected 39, Fixed 27. | https://www.suse.com/security/cve/CVE-2018-8098/ |
ubuntu
|
low | CVE-2018-8098 low priority: Ubuntu including 1 source packages (libgit2), 20 status rows across 20 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 15, needed 3, ignored 1, released 1. | https://ubuntu.com/security/CVE-2018-8098 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| libgit2 | libgit2 | < 0.26.2 | cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| https://github.com/libgit2/libgit2/commit/3207ddb0103543da8ad2139ec6539f590f9900c1 | Patch Third Party Advisory |
| https://github.com/libgit2/libgit2/commit/3db1af1f370295ad5355b8f64b865a2a357bcac0 | Patch Third Party Advisory |
| https://libgit2.github.com/security/ | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html | Mailing List Third Party Advisory |