CVE-2023-43628

2023-12-0500:00:00

ubuntu.com

vulnerability

integer underflow

gpsd

ntrip stream parsing

memory corruption

network packets

attack vector

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

7.6

Confidence

High

EPSS

Percentile

13.2%

JSON

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.

Notes

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