NULL Pointer Dereference Affecting asterisk package, versions <1:22.5.1~dfsg+~cs6.15.60671435-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-ASTERISK-11426566
- published4 Aug 2025
- disclosed1 Aug 2025
Introduced: 1 Aug 2025
CVE-2025-49832 (opens in a new tab)How to fix?
Upgrade Debian:unstable asterisk to version 1:22.5.1dfsg+cs6.15.60671435-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream asterisk package and not the asterisk package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.