Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.15.2, 21.10.2, and 22.5.2, if a SIP request is received with an Authorization header that contains a realm that wasn't in a previous 401 response's WWW-Authenticate header, or an Authorization header with an incorrect realm was received without a previous 401 response being sent, the get_authorization_header() function in res_pjsip_authenticator_digest will return a NULL. This wasn't being checked before attempting to get the digest algorithm from the header which causes a SEGV. This issue has been patched in versions 20.15.2, 21.10.2, and 22.5.2. There are no workarounds.
総合評価: CVE-2025-57767 は中リスク(40.7/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 0.38%、30 パーセンタイル) 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% | 0.38% | +0.22% |
| 2 | 2026-05-24 | 0.09% | 0.16% | +0.08% |
| 3 | 2025-08-29 | — | 0.09% | — |
EPSS の全履歴 (全 3 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2025-57767: 1 source package rows (asterisk); 101 state rows across 6 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 0, open 101. | https://security.alpinelinux.org/vuln/CVE-2025-57767 |
debian
|
unimportant | CVE-2025-57767 unimportant priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2025-57767 |
gentoo
|
high | CVE-2025-57767: 1 GLSA(s) (202601-04), 1 atom(s) (net-misc/asterisk); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2025-57767 |
ubuntu
|
medium | CVE-2025-57767 medium priority: Ubuntu including 1 source packages (asterisk), 8 status rows across 8 suites (bionic, focal, jammy, noble, plucky, questing, upstream, xenial): needs-triage 7, ignored 1. | https://ubuntu.com/security/CVE-2025-57767 |
| URL | タグ |
|---|---|
| https://github.com/asterisk/asterisk/commit/02993717b08f899d4aca9888062f35dfb198584f | Patch |
| https://github.com/asterisk/asterisk/pull/1407 | Issue Tracking Patch |
| https://github.com/asterisk/asterisk/security/advisories/GHSA-64qc-9x89-rx5j | Vendor Advisory |