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[SECURITY] [DLA 3394-1] asterisk security update

Debian LTS Advisory DLA-3394-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                      Markus Koschany
April 19, 2023                                https://wiki.debian.org/LTS

Package        : asterisk
Version        : 1:16.28.0~dfsg-0+deb10u3
CVE ID         : CVE-2023-27585

A flaw was found in Asterisk, an Open Source Private Branch Exchange. A     
buffer overflow vulnerability affects users that use PJSIP DNS resolver.
This vulnerability is related to CVE-2022-24793. The difference is that
this issue is in parsing the query record `parse_query()`, while the issue
in CVE-2022-24793 is in `parse_rr()`. A workaround is to disable DNS
resolution in PJSIP config (by setting `nameserver_count` to zero) or use
an external resolver implementation instead.

For Debian 10 buster, this problem has been fixed in version

We recommend that you upgrade your asterisk packages.

For the detailed security status of asterisk please refer to
its security tracker page at:

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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