A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.
総合評価: CVE-2020-27824 は中リスク(48.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 1.62%、73 パーセンタイル) 根拠: 直近 1 日で EPSS が +1.46% 上昇。悪用への関心が高まっている可能性があります。 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 0.16% | 1.62% | +1.46% |
| 2 | 2026-05-27 | 0.15% | 0.16% | +0.01% |
| 3 | 2026-04-18 | — | 0.15% | — |
EPSS の全履歴 (全 22 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 |
|---|---|---|---|---|---|---|
| 5.5 | 3.1 | MEDIUM |
|
1.8 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2020-27824: 1 source package rows (openjpeg); 55 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 45. | https://security.alpinelinux.org/vuln/CVE-2020-27824 |
debian
|
not yet assigned | CVE-2020-27824 not yet assigned priority: Debian including 1 source packages (openjpeg2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-27824 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2020-27824 |
suse
|
medium | CVE-2020-27824 severity moderate: SUSE including 38 source package names (0.3.2-1.2:libopenjp2-7-2.3.0-150000.3.8.1, 0.3.32-3.4:libopenjp2-7-2.3.0-150000.3.8.1, …), 266 product×package rows across 73 product lines (Container containers/lmcache-vllm-openai, Container containers/open-webui, … (73 product lines)): Fixed 183, Will Not Fix 64, Known Not Affected 19. | https://www.suse.com/security/cve/CVE-2020-27824/ |
ubuntu
|
medium | CVE-2020-27824 medium priority: Ubuntu including 7 source packages (blender, ghostscript, …), 112 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 29, needs-triage 28, DNE 25, released 18, not-affected 12. | https://ubuntu.com/security/CVE-2020-27824 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| uclouvain | openjpeg | < 2.4.0 | cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1905723 | Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00011.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OQR4EWRFFZQDMFPZKFZ6I3USLMW6TKTP/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJUPGIZE6A4O52EBOF75MCXJOL6MUCRV/ | |
| https://www.debian.org/security/2021/dsa-4882 | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpuoct2021.html | Patch Third Party Advisory |