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Ubuntu: USN-5003-1 (CVE-2021-3600): Linux kernel vulnerabilities

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Ubuntu: USN-5003-1 (CVE-2021-3600): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
06/23/2021
Created
06/25/2021
Added
06/24/2021
Modified
03/24/2022

Description

Details for this vulnerability have not been published by NIST at this point. Descriptions from software vendor advisories for this issue are provided below.

From USN-5003-1:

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code. (CVE-2021-3600)

Or Cohen discovered that the SCTP implementation in the Linux kernel contained a race condition in some situations, leading to a use-after-free condition. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23133)

Solution(s)

  • ubuntu-upgrade-linux-image-4-15-0-1022-dell300x
  • ubuntu-upgrade-linux-image-4-15-0-1075-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1089-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1103-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1106-aws
  • ubuntu-upgrade-linux-image-4-15-0-1106-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-1118-azure
  • ubuntu-upgrade-linux-image-4-15-0-147-generic
  • ubuntu-upgrade-linux-image-4-15-0-147-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-147-lowlatency
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-aws-lts-18-04
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-azure-lts-18-04
  • ubuntu-upgrade-linux-image-dell300x
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-gcp-lts-18-04
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-oracle-lts-18-04
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04

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