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AUSCERT External Security Bulletin Redistribution
ESB-2023.0464
USN-5827-1: Bind vulnerabilities
27 January 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Bind
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2022-3924 CVE-2022-3736 CVE-2022-3094
Original Bulletin:
https://ubuntu.com/security/notices/USN-5827-1
Comment: CVSS (Max): 7.5 CVE-2022-3924 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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USN-5827-1: Bind vulnerabilities
25 January 2023
Several security issues were fixed in Bind.
Releases
o Ubuntu 22.10
o Ubuntu 22.04 LTS
o Ubuntu 20.04 LTS
Packages
o bind9 - Internet Domain Name Server
Details
Rob Schulhof discovered that Bind incorrectly handled a large number of
UPDATE messages. A remote attacker could possibly use this issue to cause
Bind to consume resources, resulting in a denial of service.
( CVE-2022-3094 )
Borja Marcos discovered that Bind incorrectly handled certain RRSIG
queries. A remote attacker could possibly use this issue to cause Bind to
crash, resulting in a denial of service. This issue only affected Ubuntu
22.04 LTS and Ubuntu 22.10. ( CVE-2022-3736 )
Maksym Odinintsev discovered that Bind incorrectly handled certain answers
from stale cache. A remote attacker could possibly use this issue to cause
Bind to crash, resulting in a denial of service. This issue only affected
Ubuntu 22.04 LTS and Ubuntu 22.10. ( CVE-2022-3924 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 22.10
o bind9 - 1:9.18.4-2ubuntu2.1
Ubuntu 22.04
o bind9 - 1:9.18.1-1ubuntu1.3
Ubuntu 20.04
o bind9 - 1:9.16.1-0ubuntu2.12
In general, a standard system update will make all the necessary changes.
References
o CVE-2022-3094
o CVE-2022-3924
o CVE-2022-3736
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