Heap-based buffer overflow in mcpp - CVE-2019-14274

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the the do_msg() function in support.c. A remote attacker can create a specially crafted file, trick the victim into compiling it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

How to mitigate CVE-2019-14274

Sources

• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00032.html
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00038.html
• https://sourceforge.net/p/mcpp/bugs/13/