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Vulnerability CVE-2023-37457
Published: 2023-12-14
| Description: |
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. |
Type:
CWE-120 (Buffer Copy without Checking Size of Input ('Classic Buffer Overflow'))
References: |
https://github.com/asterisk/asterisk/security/advisories/GHSA-98rc-4j27-74hh
https://github.com/asterisk/asterisk/commit/a1ca0268254374b515fa5992f01340f7717113fa
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