Memory leak in linuxptp - CVE-2021-3571
Published: July 6, 2021
Vulnerability identifier: #VU54574
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3571
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Richard Cochran
Affected software:
linuxptp
linuxptp
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to sensitive information or perform DoS attack on the target system.
The vulnerability exists due memory leak in ptp4l program when processing PTP one-step sync messages. A remote attacker can send specially crafted one-step sync messages to the system, force the application to leak memory and perform denial of service attack or gain access to sensitive information.
How to mitigate CVE-2021-3571
Install updates from vendor's website.