CVE-2021-43083 – Apache PLC4X 0.9.0 Buffer overflow in PLC4C via crafted server response

https://notcve.org/view.php?id=CVE-2021-43083

19 Dec 2021 — Apache PLC4X - PLC4C (Only the C language implementation was effected) was vulnerable to an unsigned integer underflow flaw inside the tcp transport. Users should update to 0.9.1, which addresses this issue. However, in order to exploit this vulnerability, a user would have to actively connect to a mallicious device which could send a response with invalid content. Currently we consider the probability of this being exploited as quite minimal, however this could change in the future, especially with the ind... • http://www.openwall.com/lists/oss-security/2021/12/20/2 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-191: Integer Underflow (Wrap or Wraparound) •