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The following updates are available for Ubuntu Linux:

[USN-6644-2] LibTIFF vulnerabilities
[USN-6664-1] less vulnerability



[USN-6644-2] LibTIFF vulnerabilities


==========================================================================
Ubuntu Security Notice USN-6644-2
February 27, 2024

tiff vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS

Summary:

Several security issues were fixed in LibTIFF.

Software Description:
- tiff: Tag Image File Format (TIFF) library

Details:

USN-6644-1 fixed vulnerabilities in LibTIFF.
This update provides the corresponding updates for Ubuntu 22.04 LTS.

Original advisory details:

It was discovered that LibTIFF incorrectly handled certain files. If
a user were tricked into opening a specially crafted file, an attacker
could possibly use this issue to cause the application to crash, resulting
in a denial of service. (CVE-2023-52356)
It was discovered that LibTIFF incorrectly handled certain image files
with the tiffcp utility. If a user were tricked into opening a specially
crafted image file, an attacker could possibly use this issue to cause
tiffcp to crash, resulting in a denial of service. (CVE-2023-6228)
It was discovered that LibTIFF incorrectly handled certain files. If
a user were tricked into opening a specially crafted file, an attacker
could possibly use this issue to cause the application to consume
resources, resulting in a denial of service. (CVE-2023-6277)

Update instructions:

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

Ubuntu 22.04 LTS:
libtiff-tools 4.3.0-6ubuntu0.8
libtiff5 4.3.0-6ubuntu0.8

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

References:
https://ubuntu.com/security/notices/USN-6644-2
https://ubuntu.com/security/notices/USN-6644-1
CVE-2023-52356, CVE-2023-6228, CVE-2023-6277

Package Information:
https://launchpad.net/ubuntu/+source/tiff/4.3.0-6ubuntu0.8



[USN-6664-1] less vulnerability


==========================================================================
Ubuntu Security Notice USN-6664-1
February 27, 2024

less vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)

Summary:

less could be made to crash or run arbitrary commands if it receive
a crafted input.

Software Description:
- less: pager program similar to more

Details:

It was discovered that less incorrectly handled certain file names.
An attacker could possibly use this issue to cause a crash or execute
arbitrary commands.

Update instructions:

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

Ubuntu 23.10:
less 590-2ubuntu0.23.10.1

Ubuntu 22.04 LTS:
less 590-1ubuntu0.22.04.2

Ubuntu 20.04 LTS:
less 551-1ubuntu0.2

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
less 487-0.1ubuntu0.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
less 481-2.1ubuntu0.2+esm1

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

References:
https://ubuntu.com/security/notices/USN-6664-1
CVE-2022-48624

Package Information:
https://launchpad.net/ubuntu/+source/less/590-2ubuntu0.23.10.1
https://launchpad.net/ubuntu/+source/less/590-1ubuntu0.22.04.2
https://launchpad.net/ubuntu/+source/less/551-1ubuntu0.2