libxml2, possibly before 2.5.0, does not properly detect recursion during entity expansion, which allows context-dependent attackers to cause a denial of service (memory and CPU consumption) via a crafted XML document containing a large number of nested entity references, aka the "billion laughs attack."
結論預警: CVE-2003-1564 綜合評估為中等風險(52/100):CVSS 技術影響為中級,利用機率(EPSS 1.62%) 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 | 1.17% | 1.62% | +0.45% |
| 2 | 2026-06-13 | 1.56% | 1.17% | -0.39% |
| 3 | 2026-05-23 | — | 1.56% | — |
完整 EPSS 歷史 (共 20 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] |
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2003-1564 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2003-1564/ |
ubuntu
|
low | CVE-2003-1564 low priority: Ubuntu including 1 source packages (libxml2), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): not-affected 5, released 1. | https://ubuntu.com/security/CVE-2003-1564 |
| URL | 標籤 |
|---|---|
| http://mail.gnome.org/archives/xml/2008-August/msg00034.html | Mailing List Patch |
| http://secunia.com/advisories/31868 | Broken Link |
| http://www.reddit.com/r/programming/comments/65843/time_to_upgrade_libxml2 | Issue Tracking |
| http://www.redhat.com/support/errata/RHSA-2008-0886.html | Broken Link |
| http://www.stylusstudio.com/xmldev/200302/post20020.html | Broken Link |
| http://xmlsoft.org/news.html | Release Notes |