lib/logmatcher.c in Balabit syslog-ng before 3.2.4, when the global flag is set and when using PCRE 8.12 and possibly other versions, allows remote attackers to cause a denial of service (memory consumption) via a message that does not match a regular expression.
結論預警: CVE-2011-1951 綜合評估為中等風險(46.9/100):CVSS 技術影響為中級,利用機率(EPSS 2.46%) 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 | 1.55% | 2.46% | +0.91% |
| 2 | 2025-03-30 | 1.67% | 1.55% | -0.12% |
| 3 | 2025-03-29 | — | 1.67% | — |
完整 EPSS 歷史 (共 6 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 |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2011-1951 low priority: Debian including 1 source packages (syslog-ng), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2011-1951 |
gentoo
|
high | CVE-2011-1951: 1 GLSA(s) (201412-09), 25 atom(s) (app-admin/syslog-ng, app-misc/ca-certificates, …); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-1951 |
ubuntu
|
low | CVE-2011-1951 low priority: Ubuntu including 1 source packages (syslog-ng), 10 status rows across 10 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, upstream): not-affected 5, ignored 4, needs-triage 1. | https://ubuntu.com/security/CVE-2011-1951 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| oneidentity | syslog-ng | < 3.2.4 | cpe:2.3:a:oneidentity:syslog-ng:*:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://git.balabit.hu/?p=bazsi/syslog-ng-3.2.git%3Ba=commit%3Bh=09710c0b105e579d35c7b5f6c66d1ea5e3a3d3ff | |
| http://lists.fedoraproject.org/pipermail/package-announce/2011-June/062107.html | Mailing List Third Party Advisory |
| http://secunia.com/advisories/45122 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2011/05/26/1 | Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/47800 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=709088 | Issue Tracking Patch Third Party Advisory |