Description
Asterisk Open Source 1.0.x and 1.2.x before 1.2.29 and Business Edition A.x.x and B.x.x before B.2.5.3, when pedantic parsing (aka pedanticsipchecking) is enabled, allows remote attackers to cause a denial of service (daemon crash) via a SIP INVITE message that lacks a From header, related to invocations of the ast_uri_decode function, and improper handling of (1) an empty const string and (2) a NULL pointer.
CVSS Metrics
- Vector
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- network
- Access Cmplx
- medium
- Auth
- none
- Confidentiality
- none
- Integrity
- none
- Availability
- partial
- Weaknesses
- CWE-20
Metadata
- Primary Vendor
- ASTERISK
- Published
- 6/4/2008
- Last Modified
- 4/9/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
asterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : asterisk_business_editionasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_sourceasterisk : open_source
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