UBUNTU-CVE-2021-33815

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2021-33815
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-33815.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-33815
Upstream
Withdrawn
2025-07-18T16:46:52Z
Published
2021-06-03T17:15:00Z
Modified
2025-07-16T08:26:33.552150Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

dwauncompress in libavcodec/exr.c in FFmpeg 4.4 allows an out-of-bounds array access because dccount is not strictly checked.

References

Affected packages

Ubuntu:22.04:LTS / ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/ubuntu/ffmpeg@7:4.4.1-3ubuntu2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
7:4.4.1-3ubuntu2

Affected versions

7:4.*

7:4.4-6ubuntu5
7:4.4.1-2ubuntu1
7:4.4.1-3ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "ffmpeg"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "ffmpeg-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "ffmpeg-doc"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavcodec-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavcodec-extra"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavcodec-extra58"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavcodec-extra58-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavcodec58"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavcodec58-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavdevice-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavdevice58"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavdevice58-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavfilter-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavfilter-extra"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavfilter-extra7"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavfilter-extra7-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavfilter7"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavfilter7-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavformat-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavformat-extra"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavformat-extra58"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavformat-extra58-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavformat58"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavformat58-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavutil-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavutil56"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libavutil56-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libpostproc-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libpostproc55"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libpostproc55-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libswresample-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libswresample3"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libswresample3-dbgsym"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libswscale-dev"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libswscale5"
        },
        {
            "binary_version": "7:4.4.1-3ubuntu2",
            "binary_name": "libswscale5-dbgsym"
        }
    ]
}