The sock_setsockopt function in net/core/sock.c in the Linux kernel before 3.5 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUF or (2) SO_RCVBUF option.
結論預警: CVE-2012-6704 綜合評估為中等風險（42.9/100）：CVSS 技術影響為高級，利用機率偏低（EPSS 0.41%） 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 | 0.13% | 0.41% | +0.28% |
| 2 | 2025-03-30 | 0.53% | 0.13% | -0.40% |
| 3 | 2025-03-29 | — | 0.53% | — |
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 |
|---|---|---|---|---|---|---|
| 7.8 | 3.1 | HIGH |
|
1.8 | 5.9 | [email protected] |
| 7.2 | 2.0 | HIGH |
|
3.9 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2012-6704 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2012-6704 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2012-6704 |
suse
|
medium | CVE-2012-6704 severity moderate: SUSE including 101 source package names (kernel-bigmem-3.0.101-94.1, kernel-bigmem-base-3.0.101-94.1, …), 509 product×package rows across 84 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (84 product lines)): Known Not Affected 330, Fixed 179. | https://www.suse.com/security/cve/CVE-2012-6704/ |
ubuntu
|
low | CVE-2012-6704 low priority: Ubuntu including 27 source packages (linux, linux-armadaxp, …), 162 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): DNE 104, released 27, not-affected 17, ignored 14. | https://ubuntu.com/security/CVE-2012-6704 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| linux | linux_kernel | < 3.2.85 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.3, < 3.5 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=82981930125abfd39d7c8378a9cfdf5e1be2002b | Patch Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2016/12/03/1 | Mailing List Third Party Advisory VDB Entry |
| http://www.securityfocus.com/bid/95135 | Third Party Advisory VDB Entry |
| https://bugzilla.redhat.com/show_bug.cgi?id=1402024 | Issue Tracking Third Party Advisory |
| https://github.com/torvalds/linux/commit/82981930125abfd39d7c8378a9cfdf5e1be2002b | Patch Third Party Advisory |