USN-6421-1: Bind vulnerability

Severity

Medium

Vendor

Canonical Ubuntu

Description

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. Update Instructions: Run `sudo pro fix USN-6421-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libisc160 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libisccc-export140-udeb – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libdns162 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libbind-dev – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libbind9-140 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libisccc-export140 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libisccfg-export140 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 bind9 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libisc-export160 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 bind9-doc – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libbind-export-dev – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libisccc140 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 host – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libisccfg140 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 bind9-host – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 dnsutils – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libdns-export162 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 bind9utils – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 liblwres141 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libirs141 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 libirs-export141 – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 lwresd – 1:9.10.3.dfsg.P4-8ubuntu1.19+esm7 Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

CVEs contained in this USN include: CVE-2023-3341.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• CF Deployment
  • All versions prior to 30.0.0

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

• CF Deployment
  • Upgrade all versions to 30.0.0 or greater

History

2023-12-04: Initial vulnerability report published.