Headline
Ubuntu Security Notice USN-5848-1
Ubuntu Security Notice 5848-1 - 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.
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Ubuntu Security Notice USN-5848-1
February 09, 2023
less vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.10
- Ubuntu 22.04 LTS
Summary:
Use of less could result in a denial of service
Software Description:
- 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 LTS:
less 590-1ubuntu0.22.04.1
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5848-1
CVE-2022-46663
Package Information:
https://launchpad.net/ubuntu/+source/less/590-1ubuntu0.22.10.1
https://launchpad.net/ubuntu/+source/less/590-1ubuntu0.22.04.1
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