CVE-2023-43628

Publication date 5 December 2023

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

An integer underflow vulnerability exists in the NTRIP Stream Parsing functionality of GPSd 3.25.1~dev. A specially crafted network packet can lead to memory corruption. An attacker can send a malicious packet to trigger this vulnerability.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gpsd	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Ignored end of standard support

Notes

mdeslaur

vulnerable code introduced here: https://gitlab.com/gpsd/gpsd/-/commit/6ccd477f5e21a45f6c52a21ad323c93e59aa2461 https://gitlab.com/gpsd/gpsd/-/commit/c1c1c2706c4f5b9bf3be437d0a8f0106ef00c5e7

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
gpsd	Upstream: 3e5c6c2

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H