Resource Exhaustion Affecting asterisk package, versions <1:16.28.0~dfsg-0+deb11u8
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-DEBIAN11-ASTERISK-12225981
- published29 Aug 2025
- disclosed28 Aug 2025
Introduced: 28 Aug 2025
CVE-2025-54995 (opens in a new tab)How to fix?
Upgrade Debian:11 asterisk to version 1:16.28.0~dfsg-0+deb11u8 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:11 relevant fixed versions and status.
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 18.26.4 and 18.9-cert17, RTP UDP ports and internal resources can leak due to a lack of session termination. This could result in leaks and resource exhaustion. This issue has been patched in versions 18.26.4 and 18.9-cert17.
References
- https://security-tracker.debian.org/tracker/CVE-2025-54995
- https://github.com/asterisk/asterisk/commit/0278f5bde14565c6838a6ec39bc21aee0cde56a9
- https://github.com/asterisk/asterisk/commit/eafcd7a451dcd007dddf324ac37dd55a4808338d
- https://github.com/asterisk/asterisk/pull/1405
- https://github.com/asterisk/asterisk/pull/1406
- https://github.com/asterisk/asterisk/security/advisories/GHSA-557q-795j-wfx2
- https://lists.debian.org/debian-lts-announce/2025/10/msg00006.html