CVE-2021-43083 | BDVDB-2026-166164 Detail

ApacheApache PLC4X

Description#

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 industrial networks growing more and more together.

Impact#

No impact statement in the source data.

Weaknesses#

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-191 Integer Underflow (Wrap or Wraparound)

References#

https://lists.apache.org/thread/jxx6qc84z60xbbhn6vp2s5qf09psrtc7
http://www.openwall.com/lists/oss-security/2021/12/20/2

Exploit#

No public exploit known

History#

Version 12021-12-19Record published in the CVE List.
Version 22024-08-04Most recent update recorded in the CVE List.