Filtered by vendor Intel Subscriptions
Filtered by product 82540em Subscriptions
Total 1 CVE
CVE Vendors Products Updated CVSS v3.1
CVE-2020-12494 2 Beckhoff, Intel 20 Twincat, Twincat Driver, 82540em and 17 more 2024-11-21 5.3 Medium
Beckhoff's TwinCAT RT network driver for Intel 8254x and 8255x is providing EtherCAT functionality. The driver implements real-time features. Except for Ethernet frames sent from real-time functionality, all other Ethernet frames sent through the driver are not padded if their payload is less than the minimum Ethernet frame size. Instead, arbitrary memory content is transmitted within in the padding bytes of the frame. Most likely this memory contains slices from previously transmitted or received frames. By this method, memory content is disclosed, however, an attacker can hardly control which memory content is affected. For example, the disclosure can be provoked with small sized ICMP echo requests sent to the device.