CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HThe MMS BER decoder contains a boundary-handling flaw in the processing of certain fields within confirmed-request messages. When a crafted BER-encoded element is received over an established MMS session (TCP port 102), the decoder may advance its internal read position incorrectly, leading to a heap out-of-bounds read. This condition causes the MMS handling process to terminate unexpectedly, resulting in a denial-of-service.
CISA has issued an advisory regarding multiple vulnerabilities in MZ Automation GmbH’s libiec61850 software, specifically version <1.6.2. These vulnerabilities, all related to out-of-bounds reads, can lead to denial-of-s…