DEBIAN-CVE-2026-25068

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Source
https://security-tracker.debian.org/tracker/CVE-2026-25068
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25068.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-25068
Upstream
Downstream
Published
2026-01-29T20:16:10Z
Modified
2026-09-14T17:02:59Z
Severity
  • 4.6 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/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

alsa-lib versions 1.2.2 up to and including 1.2.15.2, prior to commit 5f7fe33, contain a heap-based buffer overflow in the topology mixer control decoder. The tplg_decode_control_mixer1() function reads the num_channels field from untrusted .tplg data and uses it as a loop bound without validating it against the fixed-size channel array (SND_TPLG_MAX_CHAN). A crafted topology file with an excessive num_channels value can cause out-of-bounds heap writes, leading to a crash.

References

Affected packages

Debian:12 / alsa-lib

Package

Name
alsa-lib
Purl
pkg:deb/debian/alsa-lib?arch=source&distro=bookworm

Affected ranges

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

Affected versions

1.*
1.2.8-1
1.2.9-1
1.2.9-2
1.2.10-1
1.2.10-2
1.2.10-3
1.2.10-3.1~exp1
1.2.10-3.1~exp2
1.2.10-3.1
1.2.10-3.2
1.2.11-1
1.2.12-1
1.2.13-1
1.2.14-1
1.2.14-2
1.2.15-1
1.2.15-2
1.2.15.1-1
1.2.15.3-1
1.2.16-1
1.2.16.1-1~bpo13+1
1.2.16.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25068.json"

Debian:13 / alsa-lib

Package

Name
alsa-lib
Purl
pkg:deb/debian/alsa-lib?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.14-1+deb13u1

Affected versions

1.*
1.2.14-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25068.json"

Debian:14 / alsa-lib

Package

Name
alsa-lib
Purl
pkg:deb/debian/alsa-lib?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.2.16-1

Affected versions

1.*
1.2.14-1
1.2.14-2
1.2.15-1
1.2.15-2
1.2.15.1-1
1.2.15.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-25068.json"