DEBIAN-CVE-2025-67269

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2025-67269
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-67269.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2025-67269
Upstream
Downstream
Published
2026-01-02T16:17:01.100Z
Modified
2026-01-22T04:16:03.699017Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An integer underflow vulnerability exists in the nextstate() function in gpsd/packet.c of gpsd versions prior to commit ffa1d6f40bca0b035fc7f5e563160ebb67199da7. When parsing a NAVCOM packet, the payload length is calculated using lexer->length = (size_t)c - 4 without checking if the input byte c is less than 4. This results in an unsigned integer underflow, setting lexer->length to a very large value (near SIZE_MAX). The parser then enters a loop attempting to consume this massive number of bytes, causing 100% CPU utilization and a Denial of Service (DoS) condition.

References

Affected packages

Debian:11 / gpsd

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.22-4+deb11u1

Affected versions

3.*
3.22-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-67269.json"

Debian:12 / gpsd

Package

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

Affected ranges

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

Affected versions

3.*
3.22-4.1
3.25-1~exp1
3.25-1~exp2
3.25-1
3.25-2
3.25-2.1~exp1
3.25-3~exp1
3.25-3
3.25-4
3.25-5
3.26.1-1
3.27-1
3.27-1.1
3.27.5-0.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-67269.json"

Debian:13 / gpsd

Package

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

Affected ranges

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

Affected versions

3.*
3.25-5
3.26.1-1
3.27-1
3.27-1.1
3.27.5-0.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-67269.json"

Debian:14 / gpsd

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.27.5-0.1

Affected versions

3.*
3.25-5
3.26.1-1
3.27-1
3.27-1.1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2025-67269.json"