CVE-2020-35198: oracle communications_eagle Integer Overflow or Wraparound

Vulnerability summary

CVE-2020-35198 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in oracle communications_eagle. EPSS estimates a 2.49% chance of exploitation in the next 30 days, higher than 84.4% of scored vulnerabilities.

Timeline

1. 12-05-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

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.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.