[USN-6523-1] u-boot-nezha vulnerability

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==========================================================================
Ubuntu Security Notice USN-6523-1
November 29, 2023

u-boot-nezha vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.04
- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in u-boot-nezha.

Software Description:
- u-boot-nezha: U-Boot for Allwinner Nezha board

Details:

It was discovered that U-Boot incorrectly handled certain USB DFU download
setup packets. A local attacker could use this issue to cause U-Boot to
crash, resulting in a denial of service, or possibly execute arbitrary
code. (CVE-2022-2347)

Nicolas Bidron and Nicolas Guigo discovered that U-Boot incorrectly handled
certain fragmented IP packets. A local attacker could use this issue to
cause U-Boot to crash, resulting in a denial of service, or possibly
execute arbitrary code. (CVE-2022-30552, CVE-2022-30790)

Update instructions:

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

Ubuntu 23.04:
u-boot-nezha 2022.10-1089-g528ae9bc6c-0ubuntu1.23.04.2

Ubuntu 22.04 LTS:
u-boot-nezha 2022.04+git20220405.7446a472-0ubuntu0.4

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-6523-1
CVE-2022-2347, CVE-2022-30552, CVE-2022-30790

Package Information:

https://launchpad.net/ubuntu/+source/u-boot-nezha/2022.10-1089-g528ae9bc6c-0ubuntu1.23.04.2

https://launchpad.net/ubuntu/+source/u-boot-nezha/2022.04+git20220405.7446a472-0ubuntu0.4