A flaw was found in pfn_swap_entry_to_page in memory management subsystem in the Linux Kernel. In this flaw, an attacker with a local user privilege may cause a denial of service problem due to a BUG statement referencing pmd_t x.
総合評価: CVE-2023-4732 は低リスク(21.6/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.18%、8 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 | 0.01% | 0.18% | +0.17% |
| 2 | 2025-11-21 | 0.05% | 0.01% | -0.04% |
| 3 | 2025-11-18 | — | 0.05% | — |
EPSS の全履歴 (全 6 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 |
|---|---|---|---|---|---|---|
| 4.7 | 3.1 | MEDIUM |
|
1.0 | 3.6 | [email protected] |
| 4.7 | 3.1 | MEDIUM |
|
1.0 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-4732 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-2023-4732 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-4732 |
ubuntu
|
medium | CVE-2023-4732 medium priority: Ubuntu including 124 source packages (linux, linux-allwinner, …), 1100 status rows across 9 suites (bionic, focal, jammy, lunar, mantic, noble, trusty, upstream, xenial): DNE 778, not-affected 129, ignored 122, released 71. | https://ubuntu.com/security/CVE-2023-4732 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | <= 5.13.19 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| redhat | codeready_linux_builder | 8.0 | cpe:2.3:a:redhat:codeready_linux_builder:8.0:*:*:*:*:*:*:* |
| redhat | codeready_linux_builder_for_arm64 | 8.0_aarch64 | cpe:2.3:a:redhat:codeready_linux_builder_for_arm64:8.0_aarch64:*:*:*:*:*:*:* |
| redhat | codeready_linux_builder_for_power_little_endian | 8.0_ppc64le | cpe:2.3:a:redhat:codeready_linux_builder_for_power_little_endian:8.0_ppc64le:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_arm_64 | 8.0_aarch64 | cpe:2.3:o:redhat:enterprise_linux_for_arm_64:8.0_aarch64:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_ibm_z_systems | 8.0_s390x | cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0_s390x:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_power_little_endian | 8.0_ppc64le | cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0_ppc64le:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_real_time | 8.0 | cpe:2.3:o:redhat:enterprise_linux_for_real_time:8.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_for_real_time_for_nfv | 8.0 | cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://access.redhat.com/errata/RHSA-2023:6901 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2023:7077 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2023:7539 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2024:0412 | |
| https://access.redhat.com/security/cve/CVE-2023-4732 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=2236982 | Issue Tracking Third Party Advisory |