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USN-5591-1 Not scored

linux-azure, linux-gcp, linux-hwe vulnerability

It was discovered that the virtual terminal driver in the Linux kernel did not properly handle VGA console font changes, 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.

Exploit probability Not scored
Published August 31, 2022
Required by Not available
Last source change June 29, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:Pro:14.04:LTS linux-azure

74 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-azure

97 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-gcp

89 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-hwe

115 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-5591-1

It was discovered that the virtual terminal driver in the Linux kernel did not properly handle VGA console font changes, 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.

View original source

05 / REFERENCES

Further evidence