==========================================================================
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