Track vulnerabilities like this one.
Sign up free to get alerted when software you use is affected.
Linux Kernel Flaws Put System Security at Risk
published 7 months ago
Summary
This update fixes security issues in the Linux kernel that could be exploited by an attacker to take control of your system. The affected parts of the kernel include the system's cryptography tools, graphics drivers, and file systems. To stay secure, apply the latest kernel update as soon as possible.
What to do
- Update canonical linux-aws to version 4.4.0-1153.159.
- Update canonical linux-lts-xenial to version 4.4.0-279.313~14.04.1.
- Update canonical linux to version 4.4.0-279.313.
- Update canonical linux-aws to version 4.4.0-1191.206.
- Update canonical linux-kvm to version 4.4.0-1154.165.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:Pro:14.04:LTS | canonical | linux-aws |
< 4.4.0-1153.159 Fix: upgrade to 4.4.0-1153.159
|
| Ubuntu:Pro:14.04:LTS | canonical | linux-lts-xenial |
< 4.4.0-279.313~14.04.1 Fix: upgrade to 4.4.0-279.313~14.04.1
|
| Ubuntu:Pro:16.04:LTS | canonical | linux |
< 4.4.0-279.313 Fix: upgrade to 4.4.0-279.313
|
| Ubuntu:Pro:16.04:LTS | canonical | linux-aws |
< 4.4.0-1191.206 Fix: upgrade to 4.4.0-1191.206
|
| Ubuntu:Pro:16.04:LTS | canonical | linux-kvm |
< 4.4.0-1154.165 Fix: upgrade to 4.4.0-1154.165
|
Original advisory text
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Cryptographic API;
- GPU drivers;
- BTRFS file system;
- GFS2 file system;
- UDF file system;
- NFC subsystem;
- Network traffic control;
(CVE-2021-47142, CVE-2021-47145, CVE-2021-47254, CVE-2024-46777,
CVE-2025-21735, CVE-2026-23060, CVE-2026-23074)
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Cryptographic API;
- GPU drivers;
- BTRFS file system;
- GFS2 file system;
- UDF file system;
- NFC subsystem;
- Network traffic control;
(CVE-2021-47142, CVE-2021-47145, CVE-2021-47254, CVE-2024-46777,
CVE-2025-21735, CVE-2026-23060, CVE-2026-23074)
References
- https://ubuntu.com/security/notices/USN-8143-1 Vendor Advisory
- https://ubuntu.com/security/CVE-2021-47142 Third Party Advisory
- https://ubuntu.com/security/CVE-2021-47145 Third Party Advisory
- https://ubuntu.com/security/CVE-2021-47254 Third Party Advisory
- https://ubuntu.com/security/CVE-2024-46777 Third Party Advisory
- https://ubuntu.com/security/CVE-2025-21735 Third Party Advisory
- https://ubuntu.com/security/CVE-2026-23060 Third Party Advisory
- https://ubuntu.com/security/CVE-2026-23074 Third Party Advisory
Timeline
Published1 Apr 2026
Updated2 Apr 2026
First seen2 Apr 2026
Sources
USN-8143-1 · OSV
Track software like this
Free during beta