Heap-based buffer overflow in Siemens products - CVE-2020-7586
Published: June 10, 2020
Vulnerability identifier: #VU28935
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-7586
CWE-ID: CWE-122
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error. A local user can pass specially crafted data to the applicatoin, trigger heap-based buffer overflow and cause a denial of service condition on the target system.
Affected software
SIMATIC PCS 7
SIMATIC PDM
SIMATIC STEP 7
SINAMICS STARTER
SIMATIC PDM
SIMATIC STEP 7
SINAMICS STARTER
How to mitigate CVE-2020-7586
Install updates from vendor's website.
SIMATIC STEP 7 - update to 5.6 SP2 HF3
SINAMICS STARTER - update to 5.4 HF1
SINAMICS STARTER - update to 5.4 HF1