Memory corruption in Amazon Web Services products - CVE-2018-16526
Published: October 19, 2018 / Updated: December 11, 2018
Vulnerability identifier: #VU15436
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-16526
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to the code doesn’t handle IP Options at all and simply removes them from the packet by using memmove and truncating the xDataLength field of the network buffer. A remote attacker can trigger memory corruption in usGenerateProtocolChecksum and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
The weakness exists due to the code doesn’t handle IP Options at all and simply removes them from the packet by using memmove and truncating the xDataLength field of the network buffer. A remote attacker can trigger memory corruption in usGenerateProtocolChecksum and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Affected software
SafeRTOS
OpenRTOS
FreeRTOS
OpenRTOS
FreeRTOS
How to mitigate CVE-2018-16526
Update the affected software to version 1.3.2.
SafeRTOS - update to 1.3.2
OpenRTOS - update to 1.3.2
FreeRTOS - update to 1.3.2
OpenRTOS - update to 1.3.2
FreeRTOS - update to 1.3.2