Description (CNA)
libcoap versions up to and including 4.3.5, prior to commit 30db3ea, contain a stack-based buffer overflow in address resolution when attacker-controlled hostname data is copied into a fixed 256-byte stack buffer without proper bounds checking. A remote attacker can trigger a crash and potentially achieve remote code execution depending on compiler options and runtime memory protections. Exploitation requires the proxy logic to be enabled (i.e., the proxy request handling code path in an application using libcoap).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| libcoap / libcoap | affected 0 through 4.3.5; unaffected 30db3eaa1f0464722ebea2ca2d5084aebfbd344d |
CWE
CWE-121
References
- https://github.com/obgm/libcoap/pull/1737
- https://github.com/obgm/libcoap/commit/30db3ea
- https://libcoap.net/
- https://www.vulncheck.com/advisories/libcoap-stack-based-buffer-overflow-in-address-resolution-dos-or-potential-rce
ADP enrichment
No English description supplied.
No references supplied.