Integer Overflow in Memory Allocator Leads to Memory Corruption in Wind River VxWorks 7

Integer Overflow in Memory Allocator Leads to Memory Corruption in Wind River VxWorks 7

CVE-2020-35198 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

An issue was discovered in Wind River VxWorks 7. The memory allocator has a possible integer overflow in calculating a memory block's size to be allocated by calloc(). As a result, the actual memory allocated is smaller than the buffer size specified by the arguments, leading to memory corruption.

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