[USN-6390-1] Bind vulnerabilities
Marc Deslauriers
marc.deslauriers at canonical.com
Wed Sep 20 16:37:22 UTC 2023
==========================================================================
Ubuntu Security Notice USN-6390-1
September 20, 2023
bind9 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
Summary:
Bind could be made to crash if it received specially crafted network
traffic.
Software Description:
- bind9: Internet Domain Name Server
Details:
It was discovered that Bind incorrectly handled certain control channel
messages. A remote attacker with access to the control channel could
possibly use this issue to cause Bind to crash, resulting in a denial of
service. (CVE-2023-3341)
Robert Story discovered that Bind incorrectly handled certain DNS-over-TLS
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 23.04. (CVE-2023-4236)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 23.04:
bind9 1:9.18.12-1ubuntu1.2
Ubuntu 22.04 LTS:
bind9 1:9.18.12-0ubuntu0.22.04.3
Ubuntu 20.04 LTS:
bind9 1:9.16.1-0ubuntu2.16
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-6390-1
CVE-2023-3341, CVE-2023-4236
Package Information:
https://launchpad.net/ubuntu/+source/bind9/1:9.18.12-1ubuntu1.2
https://launchpad.net/ubuntu/+source/bind9/1:9.18.12-0ubuntu0.22.04.3
https://launchpad.net/ubuntu/+source/bind9/1:9.16.1-0ubuntu2.16
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature
Type: application/pgp-signature
Size: 833 bytes
Desc: OpenPGP digital signature
URL: <https://lists.ubuntu.com/archives/ubuntu-security-announce/attachments/20230920/f134515b/attachment.sig>
More information about the ubuntu-security-announce
mailing list