Stack-based buffer overflow in gpsd and microjson - CVE-2018-17937
Published: February 15, 2019
Vulnerability identifier: #VU17714
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-17937
CWE-ID: CWE-121
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vendor: Eric S. Raymond
Affected software:
gpsd
microjson
gpsd
microjson
Detailed vulnerability description
The vulnerability allows an adjacent attacker to gain elevated privileges on the target system.
The vulnerability exists due to a boundary error when handling malicious input. An adjacent attacker can trigger stack-based buffer overflow and execute arbitrary code via traffic on Port 2947/TCP or crafted JSON inputs.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2018-17937
Update gpsd to version 3.18 or later.
Update microjson to version 1.4.
Update microjson to version 1.4.