Out-of-bounds read in Linux D-Bus Message Broker - CVE-2022-31212
Published: September 21, 2022
Vulnerability identifier: #VU67527
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2022-31212
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vendor: bus1
Affected software:
Linux D-Bus Message Broker
Linux D-Bus Message Broker
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when parsing DBus service Exec line in c-uitl/c-shquote. A local user can pass specially crafted input to the service, trigger an out-of-bounds read error and perform a denial of service (DoS) attack.
How to mitigate CVE-2022-31212
Install updates from vendor's website.