DEBIAN-CVE-2026-70630

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Source
https://security-tracker.debian.org/tracker/CVE-2026-70630
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70630.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-70630
Upstream
Published
2026-08-06T22:18:27Z
Modified
2026-09-02T08:47:34Z
Severity
  • 6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

FFmpeg versions from 3.0 up to, but not including, 9.0 contain an uninitialized heap memory read vulnerability in the native Screenpresso decoder (libavcodec/screenpresso.c) that allows attackers to recover sensitive memory contents by supplying a crafted SPV1 packet with a valid zlib stream that decompresses fewer bytes than the full frame requires. The screenpresso_decode_frame() function fails to validate the produced byte count before calling av_image_copy_plane() to copy the complete frame dimensions from the persistent ctx->inflated_buf buffer, causing unwritten heap memory from prior allocations or prior frames to be copied into decoded output and potentially exposing sensitive data such as userspace addresses from persistent decoding services.

References

Affected packages

Debian:12 / ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/debian/ffmpeg?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

7:5.*
7:5.1.3-1
7:5.1.3-2
7:5.1.4-0+deb12u1
7:5.1.5-0+deb12u1
7:5.1.6-0+deb12u1
7:5.1.7-0+deb12u1
7:5.1.8-0+deb12u1
7:5.1.9-0+deb12u1
7:6.*
7:6.0-1
7:6.0-2
7:6.0-3
7:6.0-4
7:6.0-5
7:6.0-6
7:6.0-7
7:6.0-8
7:6.0-9
7:6.1-1
7:6.1-2
7:6.1-3
7:6.1-4
7:6.1-5
7:6.1.1-1
7:6.1.1-2
7:6.1.1-3
7:6.1.1-4
7:6.1.1-5
7:7.*
7:7.0-1
7:7.0.1-1
7:7.0.1-2
7:7.0.1-3
7:7.0.1-4
7:7.0.1-5
7:7.0.2-1
7:7.0.2-2
7:7.0.2-3
7:7.1-1
7:7.1-2
7:7.1-3
7:7.1-4
7:7.1.1-1
7:7.1.2-1
7:7.1.3-1
7:8.*
7:8.0-1
7:8.0-2
7:8.0.1-1
7:8.0.1-2
7:8.0.1-3
7:8.1-1
7:8.1-2
7:8.1-3
7:8.1.1-1
7:8.1.1-2
7:8.1.1-3
7:8.1.1-4
7:8.1.2-1
7:8.1.2-2
7:9.*
7:9.0-1
7:9.0.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70630.json"

Debian:13 / ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/debian/ffmpeg?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

7:7.*
7:7.1.1-1
7:7.1.2-0+deb13u1
7:7.1.2-1
7:7.1.3-0+deb13u1
7:7.1.3-1
7:7.1.4-0+deb13u1
7:7.1.5-0+deb13u1
7:8.*
7:8.0-1
7:8.0-2
7:8.0.1-1
7:8.0.1-2
7:8.0.1-3
7:8.1-1
7:8.1-2
7:8.1-3
7:8.1.1-1
7:8.1.1-2
7:8.1.1-3
7:8.1.1-4
7:8.1.2-1
7:8.1.2-2
7:9.*
7:9.0-1
7:9.0.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70630.json"

Debian:14 / ffmpeg

Package

Name
ffmpeg
Purl
pkg:deb/debian/ffmpeg?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

7:7.*
7:7.1.1-1
7:7.1.2-1
7:7.1.3-1
7:8.*
7:8.0-1
7:8.0-2
7:8.0.1-1
7:8.0.1-2
7:8.0.1-3
7:8.1-1
7:8.1-2
7:8.1-3
7:8.1.1-1
7:8.1.1-2
7:8.1.1-3
7:8.1.1-4
7:8.1.2-1
7:8.1.2-2
7:9.*
7:9.0-1
7:9.0.1-1

Ecosystem specific 

{
    "urgency":  "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-70630.json"