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LSN-0079-1

Dashboard / Vulnerabilities / LSN-0079-1

LSN-0079-1

Published: 26 Jul 2021Last Modified: 3 Jun 2026

Upstream:

CVE-2021-33909

CVE-2021-3600

UBUNTU-CVE-2021-33909

Summary: Kernel Live Patch Security Notice

Details: 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) It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2021-33909)

References: https://ubuntu.com/security/notices/LSN-0079-1, https://ubuntu.com/security/CVE-2021-3600, https://ubuntu.com/security/CVE-2021-33909

Affected packages

Package

Name: linux-lts-xenial

Purl: pkg:deb/ubuntu/linux-lts-xenial?arch=source&distro=trusty%2Fesm

Affected ranges

Type: ECOSYSTEM

Events:

Introduced- 0

Fixed -4.4.0-212.244~14.04.1

Affected versions

4.4.0-13.29~14.04.1

4.4.0-14.30~14.04.2

4.4.0-15.31~14.04.1

4.4.0-18.34~14.04.1

4.4.0-21.37~14.04.1

4.4.0-22.39~14.04.1

4.4.0-22.40~14.04.1

4.4.0-24.43~14.04.1

4.4.0-28.47~14.04.1

4.4.0-31.50~14.04.1

4.4.0-34.53~14.04.1

4.4.0-36.55~14.04.1

4.4.0-38.57~14.04.1

4.4.0-42.62~14.04.1

4.4.0-45.66~14.04.1

4.4.0-47.68~14.04.1

4.4.0-51.72~14.04.1

4.4.0-53.74~14.04.1

4.4.0-57.78~14.04.1

4.4.0-59.80~14.04.1

4.4.0-62.83~14.04.1

4.4.0-63.84~14.04.2

4.4.0-64.85~14.04.1

4.4.0-66.87~14.04.1

4.4.0-67.88~14.04.1

4.4.0-70.91~14.04.1

4.4.0-71.92~14.04.1

4.4.0-72.93~14.04.1

4.4.0-75.96~14.04.1

4.4.0-78.99~14.04.2

4.4.0-79.100~14.04.1

4.4.0-81.104~14.04.1

4.4.0-83.106~14.04.1

4.4.0-87.110~14.04.1

4.4.0-89.112~14.04.1

4.4.0-91.114~14.04.1

4.4.0-92.115~14.04.1

4.4.0-93.116~14.04.1

4.4.0-96.119~14.04.1

4.4.0-97.120~14.04.1

4.4.0-98.121~14.04.1

4.4.0-101.124~14.04.1

4.4.0-103.126~14.04.1

4.4.0-104.127~14.04.1

4.4.0-108.131~14.04.1

4.4.0-109.132~14.04.1

4.4.0-111.134~14.04.1

4.4.0-112.135~14.04.1

4.4.0-116.140~14.04.1

4.4.0-119.143~14.04.1

4.4.0-121.145~14.04.1

4.4.0-124.148~14.04.1

4.4.0-127.153~14.04.1

4.4.0-128.154~14.04.1

4.4.0-130.156~14.04.1

4.4.0-131.157~14.04.1

4.4.0-133.159~14.04.1

4.4.0-134.160~14.04.1

4.4.0-135.161~14.04.1

4.4.0-137.163~14.04.1

4.4.0-138.164~14.04.1

4.4.0-139.165~14.04.1

4.4.0-140.166~14.04.1

4.4.0-141.167~14.04.1

4.4.0-142.168~14.04.1

4.4.0-143.169~14.04.2

4.4.0-144.170~14.04.1

4.4.0-146.172~14.04.1

4.4.0-148.174~14.04.1

4.4.0-150.176~14.04.1

4.4.0-151.178~14.04.1

4.4.0-154.181~14.04.1

4.4.0-157.185~14.04.1

4.4.0-159.187~14.04.1

4.4.0-161.189~14.04.1

4.4.0-164.192~14.04.1

4.4.0-165.193~14.04.1

4.4.0-166.195~14.04.1

4.4.0-168.197~14.04.1

4.4.0-169.198~14.04.1

4.4.0-170.199~14.04.1

4.4.0-171.200~14.04.1

4.4.0-173.203~14.04.1

4.4.0-174.204~14.04.1

4.4.0-176.206~14.04.1

4.4.0-177.207~14.04.1

4.4.0-178.208~14.04.1

4.4.0-179.209~14.04.1

4.4.0-184.214~14.04.1

4.4.0-185.215~14.04.1

4.4.0-186.216~14.04.1

4.4.0-187.217~14.04.1

4.4.0-189.219~14.04.1

4.4.0-190.220~14.04.1

4.4.0-193.224~14.04.1

4.4.0-194.226~14.04.1

4.4.0-197.229~14.04.1

4.4.0-198.230~14.04.1

4.4.0-200.232~14.04.1

4.4.0-201.233~14.04.1

4.4.0-203.235~14.04.1

4.4.0-204.236~14.04.1

4.4.0-206.238~14.04.1

4.4.0-208.240~14.04.1

4.4.0-209.241~14.04.1

4.4.0-210.242~14.04.1

4.4.0-211.243~14.04.1

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High