------------------------------------------------------------------------- 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 1:16.28.0~dfsg-0+deb10u3. 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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