[USN-6744-2] Pillow vulnerability

[Nick Galanis]

==========================================================================
Ubuntu Security Notice USN-6744-2
April 22, 2024

pillow vulnerability
==========================================================================

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

- Ubuntu 20.04 LTS (Available with Ubuntu Pro)

Summary:

Pillow could be made to crash or run programs as an administrator
if it opened a specially crafted file.

Software Description:
- pillow-python2: Python Imaging Library (Pillow fork)

Details:

USN-6744-1 fixed a vulnerability in Pillow (Python 3). This update
provides the corresponding updates for Pillow (Python 2) in
Ubuntu 20.04 LTS.

Original advisory details:

  Hugo van Kemenade discovered that Pillow was not properly performing
  bounds checks when processing an ICC file, which could lead to a buffer
  overflow. If a user or automated system were tricked into processing a
  specially crafted ICC file, an attacker could possibly use this issue
  to cause a denial of service or execute arbitrary code.

Update instructions:

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

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
   python-pil                      6.2.1-3ubuntu0.1~esm2

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

References:
   https://ubuntu.com/security/notices/USN-6744-2
   https://ubuntu.com/security/notices/USN-6744-1
   CVE-2024-28219

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