Debian alert DLA-4206-1 (asterisk)

From:
             
 
Markus Koschany <apo@debian.org>
To:
             
 
debian-lts-announce <debian-lts-announce@lists.debian.org>
Subject:
             
 
[SECURITY] [DLA 4206-1] asterisk security update
Date:
             
 
Mon, 02 Jun 2025 23:26:01 +0200
Message-ID:
             
 
<580ed907f72c5928dc1fcd7a2065822e541f0252.camel@debian.org>
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Debian LTS Advisory DLA-4206-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
June 02, 2025                                 https://wiki.debian.org/LTS
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Package        : asterisk
Version        : 1:16.28.0~dfsg-0+deb11u7
CVE ID         : CVE-2025-47779 CVE-2025-47780
Debian Bug     : 1106528 1106530

Two security vulnerabilities have been discovered in Asterisk, an Open
Source Private Branch Exchange.

CVE-2025-47779

    SIP requests of the type MESSAGE (RFC 3428) authentication do not get
    proper alignment. An authenticated attacker can spoof any user identity to
    send spam messages to the user with their authorization token. Abuse of
    this security issue allows authenticated attackers to send fake chat
    messages that can be spoofed to appear to come from trusted entities.

CVE-2025-47780

    Trying to disallow shell commands to be run via the Asterisk CLI by
    configuring cli_permissions.conf (e.g. with the config line deny=!*) does
    not work which could lead to a security risk.
    A new asterisk.conf option 'disable_remote_console_shell' has been added
    that, when set, will prevent remote consoles from executing shell commands
    using the '!' prefix.

For Debian 11 bullseye, these problems have been fixed in version
1:16.28.0~dfsg-0+deb11u7.

We recommend that you upgrade your asterisk packages.

For the detailed security status of asterisk please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/asterisk

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


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