USN-5848-1: less vulnerability

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS

Packages

• less - pager program similar to more

Details

David Leadbeater discovered that less was not properly handling escape
sequences when displaying raw control characters. A maliciously formed
OSC 8 hyperlink could possibly be used by an attacker to cause a denial of
service.

Update instructions

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

Ubuntu 22.10

• less - 590-1ubuntu0.22.10.1

Ubuntu 22.04

• less - 590-1ubuntu0.22.04.1

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

References

• CVE-2022-46663