Several security issues were fixed in VLC.
It was discovered that the VLC CAF demuxer incorrectly handled certain files. If a user were tricked into opening a specially-crafted CAF file, a remote attacker could use this issue to cause VLC to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-19857)
25 July 2019
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in VLC.
It was discovered that the VLC CAF demuxer incorrectly handled certain files. If a user were tricked into opening a specially-crafted CAF file, a remote attacker could use this issue to cause VLC to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-19857)
It was discovered that the VLC Matroska demuxer incorrectly handled certain files. If a user were tricked into opening a specially-crafted MKV file, a remote attacker could use this issue to cause VLC to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-12874)
It was discovered that the VLC MP4 demuxer incorrectly handled certain files. If a user were tricked into opening a specially-crafted MP4 file, a remote attacker could use this issue to cause VLC to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-13602)
It was discovered that the VLC AVI demuxer incorrectly handled certain files. If a user were tricked into opening a specially-crafted AVI file, a remote attacker could use this issue to cause VLC to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2019-5439)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.
Vulmon