An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.
総合評価: CVE-2020-29374 は公開エクスプロイトあり(50/100)。CVSS 深刻度は低。悪用される可能性が高い(EPSS 0.40%、31 パーセンタイル) 根拠: 公開エクスプロイトが 2 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 0.02% | 0.40% | +0.38% |
| 2 | 2025-11-21 | 0.05% | 0.02% | -0.03% |
| 3 | 2025-11-18 | — | 0.05% | — |
EPSS の全履歴 (全 13 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 |
|---|---|---|---|---|---|---|
| 3.6 | 3.1 | LOW |
|
1.0 | 2.5 | [email protected] |
| 3.3 | 2.0 | LOW |
|
3.4 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-29374 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-2020-29374 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-29374 |
suse
|
low | CVE-2020-29374 severity low: SUSE including 161 source package names (cluster-md-kmp-default-4.12.14-122.66.2, cluster-md-kmp-default-4.12.14-150.69.1, …), 479 product×package rows across 87 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (87 product lines)): Fixed 422, Known Not Affected 43, Will Not Fix 14. | https://www.suse.com/security/cve/CVE-2020-29374/ |
ubuntu
|
medium | CVE-2020-29374 medium priority: Ubuntu including 117 source packages (linux, linux-aws, …), 1219 status rows across 12 suites (bionic, focal, groovy, hirsute, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 879, released 165, not-affected 151, ignored 23, needed 1. | https://ubuntu.com/security/CVE-2020-29374 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | < 5.7.3 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| netapp | 500f_firmware | — | cpe:2.3:o:netapp:500f_firmware:-:*:*:*:*:*:*:* |
| netapp | a250_firmware | — | cpe:2.3:o:netapp:a250_firmware:-:*:*:*:*:*:*:* |
| netapp | h410c_firmware | — | cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* |
| netapp | solidfire_\&_hci_management_node | — | cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:* |
| netapp | solidfire_\&_hci_storage_node | — | cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:* |
| netapp | hci_compute_node_bios | — | cpe:2.3:o:netapp:hci_compute_node_bios:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html | Exploit Third Party Advisory VDB Entry |
| https://bugs.chromium.org/p/project-zero/issues/detail?id=2045 | Exploit Issue Tracking Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3 | Release Notes Third Party Advisory Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17839856fd588f4ab6b789f482ed3ffd7c403e1f | Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210115-0002/ | Third Party Advisory |
| https://www.debian.org/security/2022/dsa-5096 | Third Party Advisory |