Thursday, July 7, 2022
  • Events
  • Interviews
  • Jobs
  • Opinion
  • Whitepapers
  • Glossary
  • Community Forum
  • Web Hosting Directory
  • Login
  • Register
Cloud7 News
  • Cloud Computing
  • Web Hosting
  • Data Center
  • Linux
  • Cybersecurity
  • More
    • Network/Internet
    • Windows
    • Software
    • Hardware
    • Blockchain
    • Policy/Legislation
    • How-Tos
    • Troubleshooting
No Result
View All Result
Cloud7 News
  • Cloud Computing
  • Web Hosting
  • Data Center
  • Linux
  • Cybersecurity
  • More
    • Network/Internet
    • Windows
    • Software
    • Hardware
    • Blockchain
    • Policy/Legislation
    • How-Tos
    • Troubleshooting
No Result
View All Result
Cloud7 News
No Result
View All Result

Home > Cybersecurity > Canonical released kernel security update for Ubuntu 21.04 and 20.04 LTS, patch now

Canonical released kernel security update for Ubuntu 21.04 and 20.04 LTS, patch now

New Linux kernel security update released for Ubuntu 21.04 and Ubuntu 20.04 LTS users running Linux kernel 5.11 to fix the security vulnerabilities.

Atalay Kelestemur by Atalay Kelestemur
October 20, 2021
in Cybersecurity
2 min read
0 0
0
Canonical released kernel security update for Ubuntu 21.04 and 20.04 LTS, patch now
0
SHARES
84
VIEWS
Share on FacebookShare on TwitterShare on EmailFollow on Google News

The previous kernel security update was released three weeks ago. Now the kernel team has released the new one currently available for only Ubuntu 21.04 LTS and 20.04 LTS running the Linux 5.11 kernel series. It is also available for 64-bit, Raspberry Pi, AWS, GCP, Azure, or KVM systems.

Fixing the following security issues

The new Ubuntu kernel security patch brings a fix for

Canonical published a new Linux kernel security update for Ubuntu 21.04 and Ubuntu 20.04 LTS systems running Linux kernel 5.11 to address a total of eight security vulnerabilities. In this new Ubuntu kernel security patch, CVE-2021-3732, a flaw discovered by Alois Wohlschlager in the overlay file system that could allow an attacker to expose sensitive information is fixed. CVE-2021-3739, a security issue affecting the Btrfs file system that allows an attacker with CAP_SYS_ADMIN to cause a DoS. CVE-2021-40490 discovered in the EXT4 file system allows a local attacker to cause DOS or gain administrative privileges.

CVE-2021-42008 is also another security vulnerability discovered in the Linux kernel’s 6pack network protocol driver. The vulnerability allows a privileged attacker to crash the system by causing a DoS or execute arbitrary code. CVE-2020-3702 is a race condition discovered in the Atheros Ath9k Wi-Fi driver. The issue allows an attacker to expose sensitive information from the W-Fi network traffic. CVE-2021-3753, a race condition discovered in the virtual terminal device implementation, leads to an out-of-bounds read vulnerability. It allows a local attacker to expose sensitive information.

Update the kernel urgently

Other than these, CVE-2021-3743 is a security flaw discovered in the Qualcomm IPC Router protocol implementation that allows a local attacker to cause a DoS or expose sensitive information. Lastly, the new kernel security update also fixes CVE-2021-38166 which is an integer overflow discovered in the BPF subsystem. This issue allows a local attacker to cause a DoS or execute arbitrary code.

If you are an Ubuntu 21.04 and Ubuntu 20.04 LTS user using the Linux 5.11 kernel we strongly suggest you update your system to the new kernel versions (linux-image 5.11.0.38.39 for 64-bit) as soon as possible. To upgrade the kernel, run the following command in the Terminal (You can use the Software Updater utility too)

sudo apt update && sudo apt full-upgrade

After the update and upgrading process don’t forget to reboot your computer.

See more Cyber Security News


Tags: Canonical LtdUbuntu
ShareTweetSendShare
Atalay Kelestemur

Atalay Kelestemur

Atalay Kelestemur is the Editor-in-Chief of Cloud7 News. He was most recently the chief editor of T3. Prior to that, he was the managing editor of BYTE. He also served as software editor in PC World. Atalay Kelestemur has covered the technology industry since 1996, publishing articles in PC Net, IT Pro, Computer World, PC Life, CyberMag, and CIO magazines. Atalay Kelestemur is an information system security professional and his area of expertise includes Linux security, penetration testing, secure software development, malware removal, and computer forensics. Atalay Kelestemur is the author of Pardus 2011, Ubuntu, Windows 8, and Siber Istihbarat (Cyber Intelligence). Atalay graduated with a Bachelor's Degree in Maritime from Istanbul Technical University. He earned a master's degree in political science from Gedik University, where he wrote his thesis on The Importance of Cyber Intelligence on Public Security. Now he is working on his Ph.D. thesis on international trade, covering the cybersecurity threats and countermeasures on the maritime industry.

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

I agree to the Terms & Conditions and Privacy Policy.

Next Post
Aiven announced a $60M Series C extension

Aiven announced a $60M Series C extension

Related News

US Department of Defense is inviting hackers to assist in strengthening its security systems

US Department of Defense launches Hack U.S. bug bounty program

July 6, 2022 8:35 pm
Crypto hackers stole almost $2 billion in H1 2022

Crypto hackers stole almost $2 billion in H1 2022

July 6, 2022 8:10 pm

New ransomware targeting VMware ESXi servers

July 6, 2022 3:50 pm
CyberProof announces Microsoft Managed XDR security services integration

CyberProof announces Microsoft Managed XDR security services integration

July 5, 2022 7:30 pm
Get free daily newsletters from Cloud7 News Get the Cloud7 Newsletter

Check your inbox or spam folder to confirm your subscription.

By subscribing, you agree to our
Copyright Policy and Privacy Policy

Editor's Choice

Interview with Igor Seletskiy on AlmaLinux

7 best hosting control panels

How to update Linux Kernel without rebooting?

7 best Linux mail servers for 2022

7 best cPanel alternatives for 2022

7 best Linux web browsers for 2022

7 best CentOS alternatives

7 best Linux server distros for 2022

How to scan your server for Log4j (Log4Shell) vulnerability

10 Best Web Hosting Services of 2022

AlmaLinux 8.6 Stable is ready to download

Ubuntu 22.04 LTS is available for download. What is new?

Kali Linux 2022.2 is ready for download

Advertisement

Recent News

  • US Department of Defense launches Hack U.S. bug bounty program
  • Crypto hackers stole almost $2 billion in H1 2022
  • Oracle Linux 9 released
  • IBM announced the acquisition of Databand.ai
  • Envato is closing Envato Studio and Twenty20

Our Latest Interview

Interview: Erez Barak, Vice President Observability of Sumo Logic
Interview

Interview: Erez Barak, Vice President Observability of Sumo Logic

by Atalay Kelestemur
November 25, 2021 3:23 am


Cloud7 News is a news source that publishes the latest news, industry news and exclusive interviews on web hosting, cloud computing, data center, cybersecurity and Linux OS.

EXPLORE

  • Web Hosting
  • Cloud Computing
  • Data Center
  • Cybersecurity
  • Linux
  • Network/Internet
  • Software
  • Hardware
  • Blockchain
  • How-Tos
  • Troubleshooting

RESOURCES

  • Events
  • Interviews
  • Jobs
  • Opinion
  • Whitepapers
  • Glossary
  • Community Forum
  • Web Hosting Directory

Get the Cloud7 Newsletter

Get FREE daily newsletters from Cloud7 delivering the latest news and reviews.

  • About
  • Privacy & Policy
  • Copyright Policy
  • Contact

© 2022, Cloud7 News. All rights reserved.

No Result
View All Result
  • Cloud Computing
  • Web Hosting
  • Data Center
  • Linux
  • Cybersecurity
  • More
    • Network/Internet
    • Windows
    • Software
    • Hardware
    • Blockchain
    • Policy/Legislation
    • How-Tos
    • Troubleshooting
  • Events
  • Interviews
  • Jobs
  • Opinion
  • Whitepapers
  • Glossary
  • Community Forum
  • Web Hosting Directory

© 2022, Cloud7 News. All rights reserved.

Welcome Back!

Sign In with Facebook
Sign In with Google
Sign In with Linked In
OR

Login to your account below

Forgotten Password? Sign Up

Create New Account!

Sign Up with Facebook
Sign Up with Google
Sign Up with Linked In
OR

Fill the forms below to register

*By registering into our website, you agree to the Terms & Conditions and Privacy Policy.
All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In
This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.