Asterisk vulnerable to potential privilege escalation
Summary
Asterisk vulnerable to potential privilege escalation
Original description
The description as published by the source.
Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, when ast_coredumper writes its gdb init and output files to a directory that is world-writable (for example /tmp), an attacker with write permission(which is all users on a linux system) to that directory can cause root to execute arbitrary commands or overwrite arbitrary files by controlling the gdb init file and output paths. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-23740 asterisk Fixed in: 1:16.28.0~dfsg-0+deb11u9
- Ubuntu UBUNTU-CVE-2026-23740 asterisk
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov