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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- network
- Complexity
- low
- Privileges
- none
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- none
- Availability
- high
- Weaknesses
- CWE-120CWE-120
Metadata
- Primary Vendor
- DIGIUM
- Published
- 12/14/2023
- Last Modified
- 11/21/2024
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
digium : asteriskdigium : asteriskdigium : asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisksangoma : certified_asterisk
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