CVE-2023-38632
Published: 21 July 2023
Summary
CVE-2023-38632 is a critical-severity Out-of-bounds Write (CWE-787) vulnerability in Asynchronous Sockets For C\+\+ Project Asynchronous Sockets For C\+\+. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 3.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
async-sockets-cpp through version 0.3.1 is affected by a stack-based buffer overflow in tcpsocket.hpp. The flaw occurs during handling of malformed TCP packets and is tracked as CWE-787.
Remote attackers with no authentication or user interaction can send crafted packets to the affected component, resulting in out-of-bounds writes that enable full confidentiality, integrity, and availability impacts consistent with the CVSS 9.8 rating.
Public references consist of a GitHub issue that documents the problem; no explicit patch or mitigation guidance is supplied in the available references. The EPSS score of 0.2905 shows sustained moderate exploitation probability without a documented rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-42431
Vulnerability details
async-sockets-cpp through 0.3.1 has a stack-based buffer overflow in tcpsocket.hpp when processing malformed TCP packets.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.