A locking inconsistency issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may allow a read-after-free attack against TIOCGSID, aka CID-c8bcd9c5be24.
総合評価: CVE-2020-29660 は公開エクスプロイトあり（50/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 0.47%、37 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 | 0.03% | 0.47% | +0.44% |
| 2 | 2026-05-24 | 0.10% | 0.03% | -0.07% |
| 3 | 2025-03-30 | — | 0.10% | — |
EPSS の全履歴 （全 10 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 |
|---|---|---|---|---|---|---|
| 4.4 | 3.1 | MEDIUM |
|
0.8 | 3.6 | [email protected] |
| 2.1 | 2.0 | LOW |
|
3.9 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-29660 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-2020-29660 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-29660 |
suse
|
high | CVE-2020-29660 severity important: SUSE including 741 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 1274 product×package rows across 117 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (117 product lines)): Fixed 1142, Known Affected 129, Known Not Affected 3. | https://www.suse.com/security/cve/CVE-2020-29660/ |
ubuntu
|
medium | CVE-2020-29660 medium 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 232, released 214, ignored 38, needed 1. | https://ubuntu.com/security/CVE-2020-29660 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | <= 5.9.13 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| 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 | active_iq_unified_manager | — | cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* |
| broadcom | fabric_operating_system | — | cpe:2.3:o:broadcom:fabric_operating_system:-:*:*:*:*:*:*:* |
| netapp | solidfire_baseboard_management_controller_firmware | — | cpe:2.3:o:netapp:solidfire_baseboard_management_controller_firmware:-:*:*:*:*:*:*:* |
| netapp | h410c_firmware | — | cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* |
| netapp | a700s_firmware | — | cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:* |
| netapp | 8300_firmware | — | cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:* |
| netapp | 8700_firmware | — | cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:* |
| netapp | a400_firmware | — | cpe:2.3:o:netapp:a400_firmware:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice-LSN-0082-1.html | Exploit Third Party Advisory VDB Entry |
| http://www.openwall.com/lists/oss-security/2020/12/10/1 | Mailing List Patch Third Party Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c8bcd9c5be24fb9e6132e97da5a35e55a83e36b9 | Exploit Patch Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BOB25SU6XUL4TNP7KB63WNZSYTIYFDPP/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MZ7OAKAEFAXQRGBZK4LYUWINCD3D2XCL/ | |
| https://security.netapp.com/advisory/ntap-20210122-0001/ | Third Party Advisory |
| https://www.debian.org/security/2021/dsa-4843 | Third Party Advisory |