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USN-5764-1: U-Boot vulnerabilities

6 December 2022

Several security issues were fixed in u-boot.

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Releases

Packages

  • u-boot - A boot loader for embedded systems

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. This issue only affected Ubuntu 18.04 LTS, Ubuntu
20.04 LTS, and Ubuntu 22.04 LTS. (CVE-2022-30552, CVE-2022-30790)

It was discovered that U-Boot incorrectly handled certain NFS lookup
replies. A remote attacker could use this issue to cause U-Boot to crash,
resulting in a denial of service, or possibly execute arbitrary code. This
issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04
LTS. (CVE-2022-30767)

Jincheng Wang discovered that U-Boot incorrectly handled certain SquashFS
structures. A local attacker could use this issue to cause U-Boot to
crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and
Ubuntu 22.04 LTS. (CVE-2022-33103)

Tatsuhiko Yasumatsu discovered that U-Boot incorrectly handled certain
SquashFS structures. A local attacker could use this issue to cause U-Boot
to crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and
Ubuntu 22.04 LTS. (CVE-2022-33967)

It was discovered that U-Boot incorrectly handled the i2c command. A local
attacker could use this issue to cause U-Boot to crash, resulting in a
denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.
(CVE-2022-34835)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 22.10
Ubuntu 22.04
Ubuntu 20.04
Ubuntu 18.04

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

References

Related notices

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Further reading