USN-6180-1: VLC media player vulnerabilities

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM

Packages

• vlc - multimedia player and streamer

Details

It was discovered that VLC could be made to read out of bounds when
decoding image files. If a user were tricked into opening a crafted image
file, a remote attacker could possibly use this issue to cause VLC to
crash, leading to a denial of service. This issue only affected Ubuntu
16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-19721)

It was discovered that VLC could be made to write out of bounds when
processing H.264 video files. If a user were tricked into opening a
crafted H.264 video file, a remote attacker could possibly use this issue
to cause VLC to crash, leading to a denial of service, or possibly
execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. (CVE-2020-13428)

It was discovered that VLC could be made to read out of bounds when
processing AVI video files. If a user were tricked into opening a crafted
AVI video file, a remote attacker could possibly use this issue to cause
VLC to crash, leading to a denial of service. This issue only affected
Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. (CVE-2021-25801,
CVE-2021-25802, CVE-2021-25803, CVE-2021-25804)

It was discovered that the VNC module of VLC contained an arithmetic
overflow. If a user were tricked into opening a crafted playlist or
connecting to a rouge VNC server, a remote attacker could possibly use
this issue to cause VLC to crash, leading to a denial of service, or
possibly execute arbitrary code. (CVE-2022-41325)

Update instructions

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

Ubuntu 22.10

• vlc - 3.0.17.4-5ubuntu0.1
• vlc-plugin-access-extra - 3.0.17.4-5ubuntu0.1

Ubuntu 22.04

• vlc - 3.0.16-1ubuntu0.1~esm1
  Available with Ubuntu Pro
• vlc-plugin-access-extra - 3.0.16-1ubuntu0.1~esm1
  Available with Ubuntu Pro

Ubuntu 20.04

• vlc - 3.0.9.2-1ubuntu0.1~esm1
  Available with Ubuntu Pro
• vlc-plugin-access-extra - 3.0.9.2-1ubuntu0.1~esm1
  Available with Ubuntu Pro

Ubuntu 18.04

• vlc-plugin-access-extra - 3.0.8-0ubuntu18.04.1+esm1
  Available with Ubuntu Pro
• vlc - 3.0.8-0ubuntu18.04.1+esm1
  Available with Ubuntu Pro

Ubuntu 16.04

• vlc - 2.2.2-5ubuntu0.16.04.5+esm2
  Available with Ubuntu Pro

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

References

• CVE-2021-25801
• CVE-2021-25802
• CVE-2022-41325
• CVE-2019-19721
• CVE-2021-25804
• CVE-2021-25803
• CVE-2020-13428