USN-4591-1: Linux kernel vulnerabilities

23954

20 November 2020

20 November 2020

CLOSED

HIGH

CVE-2020-12351,CVE-2020-12352

Severity

High

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 16.04

Description

Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-confusion error. A physically proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12351)

Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate remote attacker could use this to expose sensitive information (kernel memory). (CVE-2020-12352)

CVEs contained in this USN include: CVE-2020-12351, CVE-2020-12352

Affected VMware Products and Versions

Severity is high unless otherwise noted.

Vulnerable Cloud Foundry components individually listed here. Impacted stemcells may be updated independently of upgrading Tanzu Application Service or Isolation Segment.
  • Isolation Segment
    • 2.7.x versions prior to 2.7.26
    • 2.8.x versions prior to 2.8.20
    • 2.9.x versions prior to 2.9.14
    • 2.10.x versions prior to 2.10.6
  • Operations Manager
    • 2.7 versions prior to 2.7.25
    • 2.9 versions prior to 2.9.12
    • 2.10 versions prior to 2.10.3
  • VMware Tanzu Application Service for VMs
    • 2.7.x versions prior to 2.7.27
    • 2.8.x versions prior to 2.8.21
    • 2.9.x versions prior to 2.9.15
    • 2.10.x versions prior to 2.10.7

Mitigation

Users of affected products are strongly encouraged to follow the mitigation below. The Cloud Foundry security team recommends upgrading the affected OSS components listed here if applicable. Upgrade VMware Tanzu products that use earlier versions of CF components to new Tanzu releases using new versions linked above. 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:
  • Isolation Segment
    • 2.7.26
    • 2.8.20
    • 2.9.14
    • 2.10.6
  • Operations Manager
    • 2.7.25
    • 2.9.12
    • 2.10.3
  • VMware Tanzu Application Service for VMs
    • 2.7.27
    • 2.8.21
    • 2.9.15
    • 2.10.7

References

History

2020-11-20: Initial vulnerability report published.