Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 519
Alerts This Week
Warning Icon 1 519

Ubuntu 22.04 LTS 5655-1 Moderate: Intel IoT Kernel Denial of Service

ubuntu
Calendar Grey October 4, 2022
Dist Ubuntu Esm H88
Numerous security flaws within Ubuntu's Intel IoT kernel have been patched; make sure you upgrade promptly to maintain your security!
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-intel-iotg: Linux kernel for Intel IoT platforms

Details:

It was discovered that the framebuffer driver on the Linux kernel did not

verify size limits when changing font or screen size, leading to an out-of-bounds write. A local attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code. (CVE-2021-33655)

Duoming Zhou discovered that race conditions existed in the timer handling

implementation of the Linux kernel's Rose X.25 protocol layer, resulting in

use-after-free vulnerabilities. A local attacker could use this to cause a

denial of service (system crash). (CVE-2022-2318)

Roger Pau Monné discovered that the Xen virtual block driver in the Linux

kernel did not properly initialize memory pages to be used for shared

communication with the backend. A local attacker could use this to expose

sensitive information (guest kernel memo...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service system update ubuntu kernel issues intel iot

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-5.15.0-1016-intel-iotg  5.15.0-1016.21
   linux-image-intel-iotg          5.15.0.1016.17

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-5655-1

CVE-2021-33655, CVE-2022-2318, CVE-2022-26365, CVE-2022-33740,

CVE-2022-33741, CVE-2022-33742, CVE-2022-33743, CVE-2022-33744,

CVE-2022-34494, CVE-2022-34495, CVE-2022-36946

October 04, 2022

Topics%20covered

Topics Covered

security advisory denial of service system update ubuntu kernel issues intel iot

Package Information

https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1016.21

Get the latest News and Insights

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