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

Ubuntu 23.04 USN-6328-1 Moderate: Oracle Kernel Security Flaws

ubuntu
Calendar Grey September 1, 2023
Dist Ubuntu Esm H88
Patch addressing Oracle kernel weaknesses in Ubuntu 23.04, featuring vital update guidance and insights into security concerns.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oracle: Linux kernel for Oracle Cloud systems

Details:

Daniel Moghimi discovered that some Intel(R) Processors did not properly

clear microarchitectural state after speculative execution of various

instructions. A local unprivileged user could use this to obtain to

sensitive information. (CVE-2022-40982)

Tavis Ormandy discovered that some AMD processors did not properly handle

speculative execution of certain vector register instructions. A local

attacker could use this to expose sensitive information. (CVE-2023-20593)

It was discovered that the universal 32bit network packet classifier

implementation in the Linux kernel did not properly perform reference

counting in some situations, leading to a use-after-free vulnerability. A

local attacker could use this to cause a denial of service (system crash)

or possibly execute arbitrary code. (CVE-2023-3609)

It was discovered...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu patch kernel Oracle

Update Instructions

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

Ubuntu 23.04:
   linux-image-6.2.0-1010-oracle   6.2.0-1010.10
   linux-image-oracle              6.2.0.1010.10

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-6328-1

CVE-2022-40982, CVE-2023-20593, CVE-2023-3609, CVE-2023-3610,

CVE-2023-3611, CVE-2023-3776, CVE-2023-3777, CVE-2023-3995,

CVE-2023-4004, CVE-2023-4015

Ubuntu Security Notice USN-6328-1

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu patch kernel Oracle

Package Information

https://launchpad.net/ubuntu/+source/linux-oracle/6.2.0-1010.10

Get the latest News and Insights

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

Your message here