SB2026011262 - Ubuntu update for gpsd

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Main Vulnerability Database SB2026011262

SB2026011262 - Ubuntu update for gpsd

Published: January 12, 2026

Security Bulletin ID SB2026011262
CSH Severity
High
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

High 50% Medium 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Heap-based buffer overflow (CVE-ID: CVE-2025-67268)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in drivers/driver_nmea2000.c when handling NMEA2000 PGN 129540 (GNSS Satellites in View) packets. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Integer underflow (CVE-ID: CVE-2025-67269)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service attack.

The vulnerability exists due to integer underflow within the nextstate() function in gpsd/packet.c. A remote attacker can send a specially crafted NAVCOM packet to the affected application, trigger an integer underflow and perform a denial of service attack. 


Remediation

Install update from vendor's website.

References