DEBIAN-CVE-2025-9820

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Source
https://security-tracker.debian.org/tracker/CVE-2025-9820
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9820.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-9820
Upstream
Downstream
Published
2026-01-26T20:16:09.370Z
Modified
2026-03-11T07:39:11.847625Z
Severity
  • 4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

A flaw was found in the GnuTLS library, specifically in the gnutlspkcs11token_init() function that handles PKCS#11 token initialization. When a token label longer than expected is processed, the function writes past the end of a fixed-size stack buffer. This programming error can cause the application using GnuTLS to crash or, in certain conditions, be exploited for code execution. As a result, systems or applications relying on GnuTLS may be vulnerable to a denial of service or local privilege escalation attacks.

References

Affected packages

Debian:11 / gnutls28

Package

Name
gnutls28
Purl
pkg:deb/debian/gnutls28?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.7.1-5+deb11u9

Affected versions

3.*
3.7.1-5
3.7.1-5+deb11u1
3.7.1-5+deb11u2
3.7.1-5+deb11u3
3.7.1-5+deb11u4
3.7.1-5+deb11u5
3.7.1-5+deb11u6
3.7.1-5+deb11u7
3.7.1-5+deb11u8

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9820.json"

Debian:12 / gnutls28

Package

Name
gnutls28
Purl
pkg:deb/debian/gnutls28?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.7.9-2+deb12u6

Affected versions

3.*
3.7.9-2
3.7.9-2+deb12u1
3.7.9-2+deb12u2
3.7.9-2+deb12u3
3.7.9-2+deb12u4
3.7.9-2+deb12u5

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9820.json"

Debian:13 / gnutls28

Package

Name
gnutls28
Purl
pkg:deb/debian/gnutls28?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.8.9-3+deb13u1

Affected versions

3.*
3.8.9-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9820.json"

Debian:14 / gnutls28

Package

Name
gnutls28
Purl
pkg:deb/debian/gnutls28?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.8.11-3

Affected versions

3.*
3.8.9-3
3.8.10-1
3.8.10-2
3.8.10-3
3.8.11-1
3.8.11-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-9820.json"