==========================================================================
Ubuntu Security Notice USN-6627-1
February 08, 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 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-2021-35452, CVE-2021-36411, CVE-2022-43238, CVE-2022-43241,
CVE-2022-43242)

It was discovered that libde265 did not properly manage 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 or
execute arbitrary code. This issue only affected Ubuntu 22.04 LTS.
(CVE-2021-36408)

It was discovered that libde265 contained a logical error. 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-2021-36409)

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-2021-36410, CVE-2022-43235,
CVE-2022-43236, CVE-2022-43237, CVE-2022-43239, CVE-2022-43240,
CVE-2022-43243, CVE-2022-43248, CVE-2022-43252, CVE-2022-43253)

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. This issue only affected Ubuntu 22.04
LTS. (CVE-2022-1253)

Update instructions:

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

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

Ubuntu 20.04 LTS:
   libde265-0                      1.0.4-1ubuntu0.2

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   libde265-0                      1.0.2-2ubuntu0.18.04.1~esm2

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   libde265-0                      1.0.2-2ubuntu0.16.04.1~esm2

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

References:
   https://ubuntu.com/security/notices/USN-6627-1
   CVE-2021-35452, CVE-2021-36408, CVE-2021-36409, CVE-2021-36410,
   CVE-2021-36411, CVE-2022-1253, CVE-2022-43235, CVE-2022-43236,
   CVE-2022-43237, CVE-2022-43238, CVE-2022-43239, CVE-2022-43240,
   CVE-2022-43241, CVE-2022-43242, CVE-2022-43243, CVE-2022-43248,
   CVE-2022-43252, CVE-2022-43253

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