Alerts This Week
Warning Icon 1 1,154
Alerts This Week
Warning Icon 1 1,154

Ubuntu 20.04 LTS: USN-6957-1 Critical: Kernel WeSee Flaw Exploit

ubuntu
Calendar Grey August 13, 2024
Dist Ubuntu Esm H88
Revisions for Ubuntu 20.04 LTS rectify various kernel vulnerabilities, improving defense mechanisms against potential threats.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oracle-5.15: Linux kernel for Oracle Cloud systems

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:

- ARM32 architecture;

- ARM64 architecture;

- Block layer subsystem;

- Bluetooth drivers;

- Clock framework and drivers;

- FireWire subsystem;

- GPU drivers;

- InfiniBand drivers;

- Multiple devices driver;

- EEPROM dr...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory system update malicious code ubuntu linux kernel untrusted hypervisor oracle cloud

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.04 LTS
   linux-image-5.15.0-1065-oracle  5.15.0-1065.71~20.04.1
   linux-image-oracle              5.15.0.1065.71~20.04.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-6957-1

CVE-2023-52585, CVE-2023-52752, CVE-2023-52882, CVE-2024-25742,

CVE-2024-26886, CVE-2024-26900, CVE-2024-26936, CVE-2024-26952,

CVE-2024-26980, CVE-2024-27017, CVE-2024-27398, CVE-2024-27399,

CVE-2024-27401, CVE-2024-35848, CVE-2024-35947, CVE-2024-36016,

CVE-2024-36017, CVE-2024-36031, CVE-2024-36880, CVE-2024-36883,

CVE-2024-36886, CVE-2024-36889, CVE-2024-36897, CVE-2024-36902,

CVE-2024-36904, CVE-2024-36905, CVE-2024-36906, CVE-2024-36916,

CVE-2024-36919, CVE-2024-36928, CVE-2024-36929, CVE-2024-36931,

CVE-2024-36933, CVE-2024-36934, CVE-2024-36937, CVE-2024-36938,

CVE-2024-36939, CVE-2024-36940, CVE-2024-36941, CVE-2024-36944,

CVE-2024-36946, CVE-2024-36947, CVE-2024-36950, CVE-2024-36952,

CVE-2024-36953, CVE-2024-36954, CVE-2024-36955, CVE-2024-36957,

CVE-2024-36959, CVE-2024-36960, CVE-2024-36964, CVE-2024-36965,

CVE-2024-36967, CVE-2024-36969, CVE-2024-36975, CVE-2024-38600

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6957-1

Topics%20covered

Topics Covered

security advisory system update malicious code ubuntu linux kernel untrusted hypervisor oracle cloud

Package Information

https://launchpad.net/ubuntu/+source/linux-oracle-5.15/5.15.0-1065.71~20.04.1

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here