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Ubuntu 22.04 LTS USN-6194-1 Critical: Out-Of-Bounds Write Flaw

ubuntu
Calendar Grey June 29, 2023
Dist Ubuntu Esm H88
Debian announces patch releases targeting security flaws in the Linux kernel, specifically focusing on severe buffer overflow vulnerabilities.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-oem-6.1: Linux kernel for OEM systems

Details:

Hangyu Hua discovered that the Flower classifier implementation in the

Linux kernel contained an out-of-bounds write vulnerability. An attacker

could use this to cause a denial of service (system crash) or possibly

execute arbitrary code. (CVE-2023-35788, LP: #2023577)

Xingyuan Mo and Gengjia Chen discovered that the io_uring subsystem in the

Linux kernel did not properly handle locking when IOPOLL mode is being

used. A local attacker could use this to cause a denial of service (system

crash). (CVE-2023-2430)

Wei Chen discovered that the InfiniBand RDMA communication manager

implementation in the Linux kernel contained an out-of-bounds read

vulnerability. A local attacker could use this to cause a denial of service

(system crash). (CVE-2023-2176)

It was discovered that for some Intel processors the INVLPG instruction

impl...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory DoS Ubuntu kernel critical security out-of-bounds linux-oem

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-6.1.0-1015-oem      6.1.0-1015.15
   linux-image-oem-22.04c          6.1.0.1015.15

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-6194-1

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2023220

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2023577

CVE-2023-2176, CVE-2023-2430, CVE-2023-35788

Severity
critical
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Critical

June 29, 2023

Topics%20covered

Topics Covered

security advisory DoS Ubuntu kernel critical security out-of-bounds linux-oem

Package Information

https://launchpad.net/ubuntu/+source/linux-oem-6.1/6.1.0-1015.15

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