{"id":"ALPINE-CVE-2023-37457","details":"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.","modified":"2026-09-15T08:17:48.383841773Z","published":"2023-12-14T20:15:52.260Z","upstream":["CVE-2023-37457"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2023-37457"}],"affected":[{"package":{"name":"asterisk","ecosystem":"Alpine:v3.16","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"18.20.2-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.17","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"18.20.2-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.18","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"18.20.2-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.19","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"20.5.1-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.20","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"20.5.1-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.21","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"20.5.1-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.22","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"20.5.1-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.23","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"20.5.1-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}},{"package":{"name":"asterisk","ecosystem":"Alpine:v3.24","purl":"pkg:apk/alpine/asterisk?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"19.0.0"},{"fixed":"20.5.1-r0"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2023-37457.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H"}]}