Severity

medium

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 18.04
• Cflinuxfs3

Description

It was discovered that zlib, vendored in klibc, incorrectly handled pointer arithmetic. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code. (CVE-2016-9840, CVE-2016-9841) Danilo Ramos discovered that zlib, vendored in klibc, incorrectly handled memory when performing certain deflating operations. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code. (CVE-2018-25032) Evgeny Legerov discovered that zlib, vendored in klibc, incorrectly handled memory when performing certain inflate operations. An attacker could use this issue to cause klibc to crash or to possibly execute arbitrary code. (CVE-2022-37434) Update Instructions: Run `sudo pro fix USN-6736-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: klibc-utils - 2.0.4-8ubuntu1.16.04.4+esm2 libklibc - 2.0.4-8ubuntu1.16.04.4+esm2 libklibc-dev - 2.0.4-8ubuntu1.16.04.4+esm2 Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro.

Fixed VMware Products and Versions

• Cflinuxfs3
• 0.388.0 or greater
• Xenial Stemcells
• 621.944 or greater
• Operations Manager Image
• 2.10.74 or greater
• 3.0.28+LTS-T or greater
• CF Deployment
• 30.0.0 or greater
• Operations Manager
• 2.10.74 or greater
• 3.0.28+LTS-T or greater

References

https://ubuntu.com/security/notices/USN-6736-1

https://www.cloudfoundry.org/blog/usn-6736-1

https://cve.mitre.org/cgi-bin/cvename.cgi?name=usn-6736-1

History

2024-04-16: Initial vulnerability report published.