DEBIAN-CVE-2025-59391

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Source
https://security-tracker.debian.org/tracker/CVE-2025-59391
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59391.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-59391
Upstream
Published
2025-12-08T17:16:20.080Z
Modified
2026-01-10T14:06:39.459745Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L CVSS Calculator
Summary
[none]
Details

A memory disclosure vulnerability exists in libcoap's OSCORE configuration parser in libcoap before release-4.3.5-patches. An out-of-bounds read may occur when parsing certain configuration values, allowing an attacker to infer or read memory beyond string boundaries in the .rodata section. This could potentially lead to information disclosure or denial of service.

References

Affected packages

Debian:12 / libcoap3

Package

Name
libcoap3
Purl
pkg:deb/debian/libcoap3?arch=source

Affected ranges

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

Affected versions

4.*
4.3.1-1
4.3.1-2
4.3.3-1
4.3.4-1
4.3.4-1.1~exp1
4.3.4-1.1
4.3.5-1
4.3.5-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59391.json"

Debian:13 / libcoap3

Package

Name
libcoap3
Purl
pkg:deb/debian/libcoap3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.3.4-1.1+deb13u2

Affected versions

4.*
4.3.4-1.1
4.3.4-1.1+deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59391.json"

Debian:14 / libcoap3

Package

Name
libcoap3
Purl
pkg:deb/debian/libcoap3?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.3.5-2

Affected versions

4.*
4.3.4-1.1
4.3.5-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-59391.json"