Asterisk is an open source private branch exchange and telephony toolkit. In Asterisk versions 18.20.0 and prior, 20.5.0 and prior, and 21.0.0; as well as ceritifed-asterisk 18.9-cert5 and prior, the 'update' functionality of the PJSIP_HEADER dialplan function can exceed the available buffer space for storing the new value of a header. By doing so this can overwrite memory or cause a crash. This is not externally exploitable, unless dialplan is explicitly written to update a header based on data from an outside source. If the 'update' functionality is not used the vulnerability does not occur. A patch is available at commit a1ca0268254374b515fa5992f01340f7717113fa.
総合評価: CVE-2023-37457 は中リスク（52.6/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.12%、62 パーセンタイル） 根拠: 直近 1 日で EPSS が +1.04% 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 | 0.07% | 1.12% | +1.04% |
| 2 | 2026-03-02 | 0.05% | 0.07% | +0.03% |
| 3 | 2026-01-16 | — | 0.05% | — |
EPSS の全履歴 （全 12 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] |
| 8.2 | 3.1 | HIGH |
|
3.9 | 4.2 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-37457: 1 source package rows (asterisk); 72 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 65. | https://security.alpinelinux.org/vuln/CVE-2023-37457 |
debian
|
not yet assigned | CVE-2023-37457 not yet assigned priority: Debian including 1 source packages (asterisk), 3 status rows across 3 suites (bullseye, forky, sid): resolved 3. | https://security-tracker.debian.org/tracker/CVE-2023-37457 |
gentoo
|
high | CVE-2023-37457: 1 GLSA(s) (202412-03), 1 atom(s) (net-misc/asterisk); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2023-37457 |
ubuntu
|
medium | CVE-2023-37457 medium priority: Ubuntu including 1 source packages (asterisk), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 7, ignored 5. | https://ubuntu.com/security/CVE-2023-37457 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| digium | asterisk | <= 18.20.0 | cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* |
| digium | asterisk | >= 19.0.0, <= 20.5.0 | cpe:2.3:a:digium:asterisk:*:*:*:*:*:*:*:* |
| digium | asterisk | 21.0.0 | cpe:2.3:a:digium:asterisk:21.0.0:*:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:*:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc1:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc2:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc3:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert1-rc4:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert2:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:cert3:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc1:*:*:*:*:*:* |
| sangoma | certified_asterisk | 13.13.0 | cpe:2.3:a:sangoma:certified_asterisk:13.13.0:rc2:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:-:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert1:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert10:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert11:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert12:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert2:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert3:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert4:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert5:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert6:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert7:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert8:*:*:*:*:*:* |
| sangoma | certified_asterisk | 16.8.0 | cpe:2.3:a:sangoma:certified_asterisk:16.8.0:cert9:*:*:*:*:*:* |
| sangoma | certified_asterisk | 18.9 | cpe:2.3:a:sangoma:certified_asterisk:18.9:cert1:*:*:*:*:*:* |
| sangoma | certified_asterisk | 18.9 | cpe:2.3:a:sangoma:certified_asterisk:18.9:cert2:*:*:*:*:*:* |
| sangoma | certified_asterisk | 18.9 | cpe:2.3:a:sangoma:certified_asterisk:18.9:cert3:*:*:*:*:*:* |
| sangoma | certified_asterisk | 18.9 | cpe:2.3:a:sangoma:certified_asterisk:18.9:cert4:*:*:*:*:*:* |
| sangoma | certified_asterisk | 18.9 | cpe:2.3:a:sangoma:certified_asterisk:18.9:cert5:*:*:*:*:*:* |