==========================================================================
Ubuntu Security Notice USN-6659-1
February 26, 2024

libde265 vulnerabilities
==========================================================================

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

- 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:

Several security issues were fixed in libde265.

Software Description:
- libde265: Open H.265 video codec implementation

Details:

It was discovered that libde265 could be made to write out of bounds. If a
user or automated system were tricked into opening a specially crafted
file, an attacker could possibly use this issue to cause a denial of
service or execute arbitrary code. (CVE-2022-43244, CVE-2022-43249,
CVE-2022-43250, CVE-2022-47665, CVE-2023-25221)

It was discovered that libde265 could be made to read out of bounds. If a
user or automated system were tricked into opening a specially crafted
file, an attacker could possibly use this issue to cause a denial of
service. (CVE-2022-43245)

It was discovered that libde265 could be made to dereference invalid
memory. If a user or automated system were tricked into opening a specially
crafted file, an attacker could possibly use this issue to cause a denial
of service. (CVE-2023-24751, CVE-2023-24752, CVE-2023-24754,
CVE-2023-24755, CVE-2023-24756, CVE-2023-24757, CVE-2023-24758)

Update instructions:

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

Ubuntu 22.04 LTS:
   libde265-0                      1.0.8-1ubuntu0.2

Ubuntu 20.04 LTS:
   libde265-0                      1.0.4-1ubuntu0.3

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   libde265-0                      1.0.2-2ubuntu0.18.04.1~esm3

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   libde265-0                      1.0.2-2ubuntu0.16.04.1~esm3

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

References:
   https://ubuntu.com/security/notices/USN-6659-1
   CVE-2022-43244, CVE-2022-43245, CVE-2022-43249, CVE-2022-43250,
   CVE-2022-47665, CVE-2023-24751, CVE-2023-24752, CVE-2023-24754,
   CVE-2023-24755, CVE-2023-24756, CVE-2023-24757, CVE-2023-24758,
   CVE-2023-25221

Package Information:
   https://launchpad.net/ubuntu/+source/libde265/1.0.8-1ubuntu0.2
   https://launchpad.net/ubuntu/+source/libde265/1.0.4-1ubuntu0.3