In libarchive before 3.6.2, the software does not check for an error after calling calloc function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. NOTE: the discoverer cites this CWE-476 remark but third parties dispute the code-execution impact: "In rare circumstances, when NULL is equivalent to the 0x0 memory address and privileged code can access it, then writing or reading memory is possible, which may lead to code execution."
総合評価: CVE-2022-36227 は高リスク（67.7/100）。CVSS 深刻度は重大。悪用される可能性が高い（EPSS 1.94%、77 パーセンタイル） 根拠: 直近 1 日で EPSS が +1.38% 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: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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 | 0.55% | 1.94% | +1.38% |
| 2 | 2026-05-18 | 0.48% | 0.55% | +0.07% |
| 3 | 2026-05-01 | — | 0.48% | — |
EPSS の全履歴 （全 34 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2022-36227: 1 source package rows (libarchive); 33 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 26. | https://security.alpinelinux.org/vuln/CVE-2022-36227 |
debian
|
not yet assigned | CVE-2022-36227 not yet assigned priority: Debian including 1 source packages (libarchive), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-36227 |
gentoo
|
normal | CVE-2022-36227: 1 GLSA(s) (202309-14), 1 atom(s) (app-arch/libarchive); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-36227 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2022-36227 |
suse
|
low | — | https://www.suse.com/security/cve/CVE-2022-36227/ |
ubuntu
|
low | CVE-2022-36227 low priority: Ubuntu including 1 source packages (libarchive), 11 status rows across 11 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, trusty, upstream, xenial): released 6, not-affected 4, ignored 1. | https://ubuntu.com/security/CVE-2022-36227 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| libarchive | libarchive | >= 3.0.0, < 3.6.2 | cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| fedoraproject | fedora | 37 | cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* |
| splunk | universal_forwarder | >= 8.2.0, < 8.2.12 | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| splunk | universal_forwarder | >= 9.0.0, < 9.0.6 | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| splunk | universal_forwarder | 9.1.0 | cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugs.gentoo.org/882521 | Issue Tracking Patch Third Party Advisory |
| https://github.com/libarchive/libarchive/blob/v3.0.0a/libarchive/archive_write.c#L215 | Third Party Advisory |
| https://github.com/libarchive/libarchive/issues/1754 | Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/01/msg00034.html | Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V67OO2UUQAUJS3IK4JZPF6F3LUCBU6IS/ | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202309-14 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2024/11/msg00007.html |