Bug 2386030 (CVE-2025-49832)

Summary: CVE-2025-49832 asterisk: Asterisk SIP Profile Remote Code Execution
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Asterisk. This vulnerability allows a remote attacker to trigger an application-level denial of service or potentially achieve remote code execution due to an unchecked resource consumption vulnerability in the Asterisk core. This condition is triggered by processing a specially crafted packet. The unchecked resource consumption can lead to system instability and potential unauthorized control.
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Bug Depends On: 2386207, 2386208, 2386210, 2386209    
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Description OSIDB Bzimport 2025-08-01 19:01:48 UTC
Asterisk is an open source private branch exchange and telephony toolkit. In versions up to and including 18.26.2, between 20.00.0 and 20.15.0, 20.7-cert6, 21.00.0, 22.00.0 through 22.5.0, there is a remote DoS and possible RCE condition in `asterisk/res/res_stir_shaken /verification.c` that can be exploited when an attacker can set an arbitrary Identity header, or STIR/SHAKEN is enabled, with verification set in the SIP profile associated with the endpoint to be attacked. This is fixed in versions 18.26.3, 20.7-cert6, 20.15.1, 21.10.1 and 22.5.1.