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[SECURITY] [DSA 5438-1] asterisk security update

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Debian Security Advisory DSA-5438-1                   security@debian.org
https://www.debian.org/security/                          Markus Koschany
June 22, 2023                         https://www.debian.org/security/faq
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Package        : asterisk
CVE ID         : CVE-2023-27585
Debian Bug     : 1036697

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 the oldstable distribution (bullseye), this problem has been fixed
in version 1:16.28.0~dfsg-0+deb11u3.

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 Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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[SECURITY] [DSA 5438-1] asterisk security update Markus Koschany <apo@debian.org> - 2023-06-23 00:10 +0200

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