An issue where a provided address with access_ok() is not checked was discovered in i915_gem_execbuffer2_ioctl in drivers/gpu/drm/i915/i915_gem_execbuffer.c in the Linux kernel through 4.19.13. A local attacker can craft a malicious IOCTL function call to overwrite arbitrary kernel memory, resulting in a Denial of Service or privilege escalation.
総合評価: CVE-2018-20669 は悪用リスクが高い(61.6/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.57%、43 パーセンタイル) 根拠: 公開エクスプロイトが 1 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 ↗ |
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 | 0.09% | 0.57% | +0.48% |
| 2 | 2025-11-21 | 0.04% | 0.09% | +0.04% |
| 3 | 2025-11-18 | — | 0.04% | — |
EPSS の全履歴 (全 9 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 |
|---|---|---|---|---|---|---|
| 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
|
unimportant | CVE-2018-20669 unimportant 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-2018-20669 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2018-20669 |
suse
|
high | CVE-2018-20669 severity important: SUSE including 557 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, …), 915 product×package rows across 134 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (134 product lines)): Fixed 573, Known Not Affected 193, Known Affected 149. | https://www.suse.com/security/cve/CVE-2018-20669/ |
ubuntu
|
low | CVE-2018-20669 low priority: Ubuntu including 122 source packages (linux, linux-aws, …), 1284 status rows across 14 suites (bionic, cosmic, disco, eoan, focal, groovy, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 920, not-affected 198, released 147, ignored 19. | https://ubuntu.com/security/CVE-2018-20669 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| linux | linux_kernel | >= 4.13, < 4.14.185 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.15, < 4.19.129 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| linux | linux_kernel | >= 4.20, < 5.0 | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| netapp | hci_management_node | — | cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* |
| netapp | snapprotect | — | cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:* |
| netapp | solidfire | — | cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* |
| netapp | cn1610_firmware | — | cpe:2.3:o:netapp:cn1610_firmware:-:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/log/drivers/gpu/drm/i915/i915_gem_execbuffer.c | Release Notes Vendor Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00042.html | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2019/01/23/6 | Exploit Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/106748 | Broken Link Third Party Advisory VDB Entry |
| https://access.redhat.com/security/cve/cve-2018-20669 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20190404-0002/ | Third Party Advisory |
| https://support.f5.com/csp/article/K32059550 | Third Party Advisory |
| https://usn.ubuntu.com/4485-1/ | Third Party Advisory |