PT-2026-1058 · Gpsd+4 · Gpsd+4

Published 2025-01-01 · Updated 2026-01-30 · CVE-2025-67269

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions gpsd versions prior to commit ffa1d6f40bca0b035fc7f5e563160ebb67199da7

Description An integer underflow issue exists in the nextstate() function within gpsd/packet.c. This occurs when parsing a NAVCOM packet, where the payload length is calculated without verifying if the input byte c is less than 4. This can lead to an unsigned integer underflow, resulting in a very large value being assigned to lexer->length. Subsequently, the parser attempts to consume this excessive number of bytes, causing high CPU usage and a Denial of Service (DoS) condition.

Recommendations Update gpsd to a version after commit ffa1d6f40bca0b035fc7f5e563160ebb67199da7.

Exploit

Fix

DoS

Integer Underflow

Weakness Enumeration

CWE-191

Related Identifiers

ALSA-2026:0770

ALSA-2026:0771

BDU:2026-06691

CVE-2025-67269

MGASA-2026-0028

OPENSUSE-SU-2026:10008-1

RHSA-2026:0770

RHSA-2026:0771

USN-7948-1

Affected Products

Debian

Linuxmint

Rocky Linux

Ubuntu

Gpsd

References · 41

• 🔥 https://github.com/Jaenact/gspd_cve/blob/main/CVE-2025-67269/README.md · Exploit
• https://cve.org/CVERecord?id=CVE-2025-67269 · Security Note
• https://errata.almalinux.org/10/ALSA-2026-0770.html · Vendor Advisory
• https://osv.dev/vulnerability/USN-7948-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:0771 · Vendor Advisory
• https://errata.almalinux.org/9/ALSA-2026-0771.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-67269 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:0770 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2026-0518SE47 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2025-67269 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-0771.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10008-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-06691 · Security Note
• https://ubuntu.com/security/CVE-2025-67268 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-67269 · Vendor Advisory