Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.
結論預警: CVE-2016-4805 綜合評估為中等風險（44.7/100）：CVSS 技術影響為高級，利用機率偏低（EPSS 0.48%） 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 | 0.12% | 0.48% | +0.36% |
| 2 | 2025-03-30 | 0.45% | 0.12% | -0.33% |
| 3 | 2025-03-29 | — | 0.45% | — |
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-2016-4805 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-2016-4805 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2016-4805 |
suse
|
low | CVE-2016-4805 severity low: SUSE including 168 source package names (kernel-bigsmp-3.0.101-0.47.86.1, kernel-bigsmp-base-3.0.101-0.47.86.1, …), 319 product×package rows across 35 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (35 product lines)): Fixed 313, Known Not Affected 6. | https://www.suse.com/security/cve/CVE-2016-4805/ |
ubuntu
|
medium | CVE-2016-4805 medium priority: Ubuntu including 27 source packages (linux, linux-armadaxp, …), 185 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): DNE 119, released 40, ignored 15, not-affected 11. | https://ubuntu.com/security/CVE-2016-4805 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| novell | suse_linux_enterprise_desktop | 12.0 | cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:-:*:*:*:*:*:* |
| novell | suse_linux_enterprise_workstation_extension | 12.0 | cpe:2.3:a:novell:suse_linux_enterprise_workstation_extension:12.0:-:*:*:*:*:*:* |
| novell | suse_linux_enterprise_module_for_public_cloud | 12.0 | cpe:2.3:a:novell:suse_linux_enterprise_module_for_public_cloud:12.0:-:*:*:*:*:*:* |
| novell | suse_linux_enterprise_server | 11.0 | cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp4:*:*:*:*:*:* |
| novell | opensuse_leap | 42.1 | cpe:2.3:o:novell:opensuse_leap:42.1:*:*:*:*:*:*:* |
| novell | suse_linux_enterprise_software_development_kit | 11.0 | cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:11.0:sp4:*:*:*:*:*:* |
| redhat | enterprise_linux | 6.0 | cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:* |
| linux | linux_kernel | >= 2.6.30, < 3.2.80 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.3, < 3.10.102 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.11, < 3.12.59 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.13, < 3.14.67 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.15, < 3.16.35 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.17, < 3.18.37 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 3.19, < 4.1.28 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.2, < 4.4.8 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.5, < 4.5.2 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| novell | suse_linux_enterprise_software_development_kit | 12.0 | cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:-:*:*:*:*:*:* |
| novell | suse_linux_enterprise_workstation_extension | 12.0 | cpe:2.3:a:novell:suse_linux_enterprise_workstation_extension:12.0:sp1:*:*:*:*:*:* |
| novell | suse_linux_enterprise_server | 12.0 | cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:-:*:*:*:*:*:* |
| novell | suse_linux_enterprise_desktop | 12.0 | cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:sp1:*:*:*:*:*:* |
| redhat | enterprise_linux | 7.0 | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
| oracle | linux | 6 | cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* |
| novell | suse_linux_enterprise_real_time_extension | 11.0 | cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:11.0:sp4:*:*:*:*:*:* |
| novell | suse_linux_enterprise_server | 12.0 | cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:sp1:*:*:*:*:*:* |
| novell | suse_linux_enterprise_real_time_extension | 12.0 | cpe:2.3:o:novell:suse_linux_enterprise_real_time_extension:12.0:sp1:*:*:*:*:*:* |
| novell | suse_linux_enterprise_software_development_kit | 12.0 | cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:sp1:*:*:*:*:*:* |
| novell | suse_linux_enterprise_live_patching | 12.0 | cpe:2.3:a:novell:suse_linux_enterprise_live_patching:12.0:-:*:*:*:*:*:* |