ubuntu-cve-2026-70632
Vulnerability from osv_ubuntu
Published
2026-08-06 22:18
Modified
2026-08-26 04:39
Summary
Details
FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhd_decode() function fails to enforce the non-Bayer logical output-width invariant in the transform-type-2 reconstruction path, causing horiz_filter_clip() to write oversized 16-bit sample rows far beyond the allocated output frame buffer, which can be escalated to arbitrary code execution via overwrite of a live cleanup callback pointer.
Severity
7.8 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"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"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "libav",
"purl": "pkg:deb/ubuntu/libav@6:9.20-0ubuntu0.14.04.1+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"6:0.8.7-1ubuntu2",
"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": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavcodec-extra58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavcodec58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavdevice58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavfilter-extra7",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavfilter7",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavformat-extra58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavformat58",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libavutil56",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libpostproc55",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libswresample3",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
},
{
"binary_name": "libswscale5",
"binary_version": "7:4.4.2-0ubuntu0.22.04.1+esm14"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "ffmpeg",
"purl": "pkg:deb/ubuntu/ffmpeg@7:4.4.2-0ubuntu0.22.04.1+esm14?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7:4.4.2-0ubuntu0.22.04.1+esm14"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavcodec-extra60",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavcodec60",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavdevice60",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavfilter-extra9",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavfilter9",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavformat-extra60",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavformat60",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libavutil58",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libpostproc57",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libswresample4",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
},
{
"binary_name": "libswscale7",
"binary_version": "7:6.1.1-3ubuntu5+esm12"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:24.04:LTS",
"name": "ffmpeg",
"purl": "pkg:deb/ubuntu/ffmpeg@7:6.1.1-3ubuntu5+esm12?arch=source\u0026distro=esm-apps/noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7:6.1.1-3ubuntu5+esm12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "ffmpeg",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavcodec-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavcodec-extra62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavcodec62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavdevice62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavfilter-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavfilter-extra11",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavfilter11",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavformat-extra",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavformat-extra62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavformat62",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libavutil60",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libswresample6",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
},
{
"binary_name": "libswscale9",
"binary_version": "7:8.0.1-3ubuntu2+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:26.04:LTS",
"name": "ffmpeg",
"purl": "pkg:deb/ubuntu/ffmpeg@7:8.0.1-3ubuntu2+esm1?arch=source\u0026distro=esm-apps/resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7:7.1.1-1ubuntu4",
"7:7.1.2-1ubuntu3",
"7:7.1.2-1ubuntu4",
"7:7.1.3-1ubuntu1",
"7:8.0.1-2ubuntu1",
"7:8.0.1-3ubuntu1",
"7:8.0.1-3ubuntu2",
"7:8.0.1-3ubuntu2+esm1"
]
}
],
"aliases": [],
"details": "FFmpeg versions from 4.4 up to, but not including, 9.0 contain an out-of-bounds heap write vulnerability in the native GoPro CineForm HD (CFHD) decoder that allows remote attackers to corrupt heap memory by supplying a crafted AVI file during stream probing. The cfhd_decode() function fails to enforce the non-Bayer logical output-width invariant in the transform-type-2 reconstruction path, causing horiz_filter_clip() to write oversized 16-bit sample rows far beyond the allocated output frame buffer, which can be escalated to arbitrary code execution via overwrite of a live cleanup callback pointer.",
"id": "UBUNTU-CVE-2026-70632",
"modified": "2026-08-26T04:39:43Z",
"published": "2026-08-06T22:18:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-70632"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-70632"
},
{
"type": "REPORT",
"url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23898"
},
{
"type": "REPORT",
"url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1006a2151236f9235bf02822f263b3fb0532111e"
},
{
"type": "REPORT",
"url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/16b2049d4d5222db6cd7c031409058571c94f6a9"
},
{
"type": "REPORT",
"url": "https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/db05df9d135fb56a4babb836d5e9f5c1d984e087"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8680-1"
}
],
"related": [
"USN-8680-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-70632"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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