Severity

low

Vendor

VMware Tanzu

Versions Affected

• Canonical Ubuntu 16.04

Description

Jan Engelhardt, Tavis Ormandy, and others discovered that the GNU C Library iconv feature incorrectly handled certain input sequences. An attacker could possibly use this issue to cause the GNU C Library to hang or crash, resulting in a denial of service. (CVE-2016-10228, CVE-2019-25013, CVE-2020-27618) It was discovered that the GNU C Library did not properly handled DNS responses when ENDS0 is enabled. An attacker could possibly use this issue to cause fragmentation-based attacks. (CVE-2017-12132) Update Instructions: Run `sudo pro fix USN-5768-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libc-bin - 2.23-0ubuntu11.3+esm3 glibc-doc - 2.23-0ubuntu11.3+esm3 libc6-i386 - 2.23-0ubuntu11.3+esm3 libc6-s390 - 2.23-0ubuntu11.3+esm3 libc6-dev-i386 - 2.23-0ubuntu11.3+esm3 libc6-dev-s390 - 2.23-0ubuntu11.3+esm3 libc6-armel - 2.23-0ubuntu11.3+esm3 libc6-dev-armel - 2.23-0ubuntu11.3+esm3 multiarch-support - 2.23-0ubuntu11.3+esm3 libc6-dev - 2.23-0ubuntu11.3+esm3 libc6-amd64 - 2.23-0ubuntu11.3+esm3 libc6-x32 - 2.23-0ubuntu11.3+esm3 libc6-dev-amd64 - 2.23-0ubuntu11.3+esm3 libc-dev-bin - 2.23-0ubuntu11.3+esm3 libc6 - 2.23-0ubuntu11.3+esm3 locales-all - 2.23-0ubuntu11.3+esm3 libc6-pic - 2.23-0ubuntu11.3+esm3 nscd - 2.23-0ubuntu11.3+esm3 glibc-source - 2.23-0ubuntu11.3+esm3 libc6-dev-x32 - 2.23-0ubuntu11.3+esm3 locales - 2.23-0ubuntu11.3+esm3 Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

CVEs contained in this USN include: CVE-2016-10228, CVE-2017-12132, CVE-2019-25013, CVE-2020-27618

Affected VMware Products and Versions

Severity is low unless otherwise noted.

• Tanzu Greenplum for Kubernetes
  • All versions prior to 2.0.0
• Isolation Segment
  • 2.8.x versions with Xenial Stemcells prior to 621.376
  • 2.9.x versions with Xenial Stemcells prior to 621.376
  • 2.10.x versions with Xenial Stemcells prior to 621.376
  • 2.11.x versions with Xenial Stemcells prior to 621.376
  • 2.12.x versions with Xenial Stemcells prior to 621.376
  • 2.13.x versions with Xenial Stemcells prior to 621.376
• Operations Manager
  • 2.10.x versions prior to 2.10.52
• VMware Tanzu Application Service for VMs
  • 2.8.x versions with Xenial Stemcells prior to 621.376
  • 2.9.x versions with Xenial Stemcells prior to 621.376
  • 2.10.x versions with Xenial Stemcells prior to 621.376
  • 2.11.x versions with Xenial Stemcells prior to 621.376
  • 2.12.x versions with Xenial Stemcells prior to 621.376
  • 2.13.x versions with Xenial Stemcells prior to 621.376

Mitigation

Users of affected products are strongly encouraged to follow the mitigation below. On the Tanzu Network product page for each release, check the Depends On section and/or Release Notes for this information. Releases that have fixed this issue include:

• Tanzu Greenplum for Kubernetes
  • 2.0.0
• Isolation Segment
  • 2.8.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.9.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.10.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.11.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.12.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.13.x: Upgrade Xenial Stemcells to 621.376 or greater
• Operations Manager
  • 2.10.52
• VMware Tanzu Application Service for VMs
  • 2.8.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.9.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.10.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.11.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.12.x: Upgrade Xenial Stemcells to 621.376 or greater
  • 2.13.x: Upgrade Xenial Stemcells to 621.376 or greater

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-10228
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12132
• https://ubuntu.com/security/CVE-2019-25013
• https://ubuntu.com/security/CVE-2020-27618
• https://ubuntu.com/security/notices/USN-5768-1
• https://cloudfoundry.org/blog/usn-5768-1

History

2023-05-11: Initial vulnerability report published.