DEBIAN-CVE-2026-56109

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Source
https://security-tracker.debian.org/tracker/CVE-2026-56109
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56109.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-56109
Upstream
Published
2026-06-22T18:16:48Z
Modified
2026-09-14T17:03:45Z
Severity
  • 7.0 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/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

The Advanced Linux Sound Architecture (ALSA) library before 1.2.16.1 contains a double-free vulnerability in parse_def() in src/conf.c that allows attackers to corrupt memory by supplying maliciously crafted ALSA configuration text. When parsing nested compound or array configuration blocks, parse_def() fails to check return values before continuing, causing snd_config_delete() to be called twice on the same already-freed node, resulting in a NULL-pointer write or invalid memory read.

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":  "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56109.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

Affected versions

1.*
1.2.14-1
1.2.14-1+deb13u1
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":  "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56109.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
1.2.16.1-1

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
1.2.16-1
1.2.16.1-1~bpo13+1

Ecosystem specific 

{
    "urgency":  "unimportant"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-56109.json"