UBUNTU-CVE-2026-64835

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Source

https://ubuntu.com/security/CVE-2026-64835

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64835.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-64835

Upstream

CVE-2026-64835

Downstream

USN-8716-1

USN-8716-2

Related

Published

2026-07-22T18:17:00Z

Modified

2026-09-10T00:56:42Z

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
8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

FFmpeg versions 4.4 through 8.1.2 contain an out-of-bounds memory access vulnerability in the ADX audio decoder within libavcodec/adxdec.c that allows attackers to trigger both out-of-bounds reads and writes by supplying a crafted ADX or AAX audio file with a mid-stream channel layout change. When AV_PKT_DATA_NEW_EXTRADATA side data is received mid-stream, the adx_decode_frame function re-parses the stream header but fails to update the internal channel state, causing subsequent decoding operations to access the prev[] state array using a stale channel count.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libav

Package

Name: libav
Purl: pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

6:0.*

6:0.8.7-1ubuntu2

6:9.*

6:9.10-1ubuntu1

6:9.10-1ubuntu2

6:9.10-1ubuntu5

6:9.10-1ubuntu6

6:9.10-1ubuntu7

6:9.11-2ubuntu1

6:9.11-2ubuntu2

6:9.13-0ubuntu0.14.04.1

6:9.14-0ubuntu0.14.04.1

6:9.16-0ubuntu0.14.04.1

6:9.18-0ubuntu0.14.04.1

6:9.20-0ubuntu0.14.04.1

6:9.20-0ubuntu0.14.04.1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libav-tools",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec-extra-54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavdevice-extra-53",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavdevice53",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavfilter-extra-3",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavfilter3",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavformat-extra-54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavformat54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavresample1",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavutil-extra-52",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavutil52",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libswscale-extra-2",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libswscale2",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64835.json"

Ubuntu:Pro:22.04:LTS / ffmpeg

Package

Name: ffmpeg
Purl: pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fjammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

7:4.4.2-0ubuntu0.22.04.1+esm15

Affected versions

7:4.*

7:4.4-6ubuntu5

7:4.4.1-2ubuntu1

7:4.4.1-3ubuntu1

7:4.4.1-3ubuntu2

7:4.4.1-3ubuntu3

7:4.4.1-3ubuntu5

7:4.4.2-0ubuntu0.22.04.1

7:4.4.2-0ubuntu0.22.04.1+esm1

7:4.4.2-0ubuntu0.22.04.1+esm2

7:4.4.2-0ubuntu0.22.04.1+esm3

7:4.4.2-0ubuntu0.22.04.1+esm4

7:4.4.2-0ubuntu0.22.04.1+esm5

7:4.4.2-0ubuntu0.22.04.1+esm6

7:4.4.2-0ubuntu0.22.04.1+esm7

7:4.4.2-0ubuntu0.22.04.1+esm8

7:4.4.2-0ubuntu0.22.04.1+esm9

7:4.4.2-0ubuntu0.22.04.1+esm10

7:4.4.2-0ubuntu0.22.04.1+esm11

7:4.4.2-0ubuntu0.22.04.1+esm12

7:4.4.2-0ubuntu0.22.04.1+esm13

7:4.4.2-0ubuntu0.22.04.1+esm14

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavcodec-extra58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavcodec58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavdevice58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavfilter-extra7",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavfilter7",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavformat-extra",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavformat-extra58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavformat58",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libavutil56",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libpostproc55",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libswresample3",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        },
        {
            "binary_name": "libswscale5",
            "binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm15"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64835.json"

Ubuntu:Pro:24.04:LTS / ffmpeg

Package

Name: ffmpeg
Purl: pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fnoble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

7:6.1.1-3ubuntu5+esm13

Affected versions

7:6.*

7:6.0-6ubuntu1

7:6.0-9ubuntu1

7:6.1-2ubuntu1

7:6.1-3ubuntu1

7:6.1-4ubuntu1

7:6.1-5ubuntu1

7:6.1.1-1ubuntu1

7:6.1.1-3ubuntu1

7:6.1.1-3ubuntu5

7:6.1.1-3ubuntu5+esm1

7:6.1.1-3ubuntu5+esm2

7:6.1.1-3ubuntu5+esm3

7:6.1.1-3ubuntu5+esm4

7:6.1.1-3ubuntu5+esm5

7:6.1.1-3ubuntu5+esm6

7:6.1.1-3ubuntu5+esm7

7:6.1.1-3ubuntu5+esm8

7:6.1.1-3ubuntu5+esm10

7:6.1.1-3ubuntu5+esm11

7:6.1.1-3ubuntu5+esm12

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavcodec-extra60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavcodec60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavdevice60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavfilter-extra9",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavfilter9",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavformat-extra",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavformat-extra60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavformat60",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libavutil58",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libpostproc57",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libswresample4",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        },
        {
            "binary_name": "libswscale7",
            "binary_version": "7:6.1.1-3ubuntu5+esm13"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64835.json"

Ubuntu:Pro:26.04:LTS / ffmpeg

Package

Name: ffmpeg
Purl: pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

7:8.0.1-3ubuntu2+esm4

Affected versions

7:7.*

7:7.1.1-1ubuntu4

7:7.1.2-1ubuntu3

7:7.1.2-1ubuntu4

7:7.1.3-1ubuntu1

7:8.*

7:8.0.1-2ubuntu1

7:8.0.1-3ubuntu1

7:8.0.1-3ubuntu2

7:8.0.1-3ubuntu2+esm1

7:8.0.1-3ubuntu2+esm3

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec-extra62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavdevice62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter-extra11",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter11",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat-extra62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavutil60",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libswresample6",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libswscale9",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64835.json"