USN-6921-2: Linux kernel vulnerabilities
Publication date
30 July 2024
Overview
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux-lowlatency - Linux low latency kernel
Details
Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde
discovered that an untrusted hypervisor could inject malicious #VC
interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw
is known as WeSee. A local attacker in control of the hypervisor could use
this to expose sensitive information or possibly execute arbitrary code in
the trusted execution environment. (CVE-2024-25742)
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:
- DMA engine subsystem;
- HID subsystem;
- I2C subsystem;
- PHY drivers;
- TTY drivers;
- IPv4 networking
Benedict Schlüter, Supraja Sridhara, Andrin Bertschi, and Shweta Shinde
discovered that an untrusted hypervisor could inject malicious #VC
interrupts and compromise the security guarantees of AMD SEV-SNP. This flaw
is known as WeSee. A local attacker in control of the hypervisor could use
this to expose sensitive information or possibly execute arbitrary code in
the trusted execution environment. (CVE-2024-25742)
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:
- DMA engine subsystem;
- HID subsystem;
- I2C subsystem;
- PHY drivers;
- TTY drivers;
- IPv4 networking
Update instructions
After a standard system update you need to reboot your computer to make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
Ubuntu Release | Package Version | ||
---|---|---|---|
24.04 noble | linux-image-6.8.0-39-lowlatency – 6.8.0-39.39.1 | ||
linux-image-6.8.0-39-lowlatency-64k – 6.8.0-39.39.1 | |||
linux-image-lowlatency – 6.8.0-39.39.1 | |||
linux-image-lowlatency-64k – 6.8.0-39.39.1 |
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.
References
Related notices
- USN-7019-1
- USN-6979-1
- USN-6957-1
- USN-6956-1
- USN-6953-1
- USN-6952-1
- USN-6938-1
- USN-6927-1
- USN-6926-1
- USN-6926-2
- USN-7019-1
- USN-6979-1
- USN-6957-1
- USN-6956-1
- USN-6953-1
- USN-6952-1
- USN-6938-1
- USN-6927-1
- USN-6926-1
- USN-6926-2
- USN-6926-3
- USN-6924-1
- USN-6924-2
- USN-6923-1
- USN-6923-2
- USN-6921-1
- USN-6919-1
- USN-6917-1
- USN-6898-1
- USN-6898-2
- USN-6898-3
- USN-6898-4
- USN-6896-1
- USN-6896-2
- USN-6896-3
- USN-6896-4
- USN-6896-5
- LSN-0106-1
Have additional questions?