A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
総合評価: CVE-2020-35508 は低リスク(22.7/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.22%、13 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.22% | +0.17% |
| 2 | 2025-03-30 | 0.17% | 0.05% | -0.11% |
| 3 | 2025-03-29 | — | 0.17% | — |
EPSS の全履歴 (全 12 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 4.5 | 3.1 | MEDIUM |
|
1.0 | 3.4 | [email protected] |
| 4.4 | 2.0 | MEDIUM |
|
3.4 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-35508 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-2020-35508 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-35508 |
suse
|
medium | CVE-2020-35508 severity moderate: SUSE including 34 source package names (bpftool-4.18.0-305.el8, kernel-4.18.0-305.el8, …), 266 product×package rows across 55 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (55 product lines)): Known Not Affected 246, Fixed 20. | https://www.suse.com/security/cve/CVE-2020-35508/ |
ubuntu
|
low | CVE-2020-35508 low priority: Ubuntu including 169 source packages (linux, linux-allwinner, …), 2181 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1696, not-affected 235, released 211, ignored 39. | https://ubuntu.com/security/CVE-2020-35508 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | < 5.12 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | 5.12 | cpe:2.3:o:linux:linux_kernel:5.12:-:*:*:*:*:*:* |
| linux | linux_kernel | 5.12 | cpe:2.3:o:linux:linux_kernel:5.12:rc1:*:*:*:*:*:* |
| linux | linux_kernel | 5.12 | cpe:2.3:o:linux:linux_kernel:5.12:rc2:*:*:*:*:*:* |
| linux | linux_kernel | 5.12 | cpe:2.3:o:linux:linux_kernel:5.12:rc3:*:*:*:*:*:* |
| linux | linux_kernel | 5.12 | cpe:2.3:o:linux:linux_kernel:5.12:rc4:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| netapp | a700s_firmware | — | cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:* |
| netapp | brocade_fabric_operating_system_firmware | — | cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:* |
| netapp | fas8300_firmware | — | cpe:2.3:o:netapp:fas8300_firmware:-:*:*:*:*:*:*:* |
| netapp | fas8700_firmware | — | cpe:2.3:o:netapp:fas8700_firmware:-:*:*:*:*:*:*:* |
| netapp | aff_a400_firmware | — | cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:* |
| netapp | h300s_firmware | — | cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* |
| netapp | h500s_firmware | — | cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* |
| netapp | h700s_firmware | — | cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* |
| netapp | h300e_firmware | — | cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* |
| netapp | h500e_firmware | — | cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* |
| netapp | h700e_firmware | — | cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* |
| netapp | h410s_firmware | — | cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* |
| netapp | h410c_firmware | — | cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* |
| netapp | h610c_firmware | — | cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:* |
| netapp | h610s_firmware | — | cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:* |
| netapp | h615c_firmware | — | cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1902724 | Issue Tracking Patch Third Party Advisory |
| https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948 | Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210513-0006/ | Third Party Advisory |