cpp-httplib: Use-after-free of TLS session in WebSocketClient::shutdown_and_close()
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| yhirose | cpp-httplib | affected |
|
No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Yhirose | Cpp-httplib |
|
No CVSS v3.1
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.445% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Yhirose
Yhirose cpp-httplib |
|
| Vendors & Products |
Yhirose
Yhirose cpp-httplib |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | cpp-httplib is a C++ header-only HTTP/HTTPS library. In versions 0.33.0 through 0.50.0, the TLS-enabled WebSocket client frees the TLS session before closing the WebSocket that still uses it, producing a use-after-free. In WebSocketClient::shutdown_and_close the SSL object is freed and the pointer cleared, but the subsequent WebSocket close still sends a close frame through the SSL socket stream, which holds a raw copy of the now-dangling session pointer and reads from and writes to the freed memory. The same freed-then-used ordering is reachable through the client's destructor and its connect path, so ordinary teardown of a secure WebSocket connection triggers the defect. This issue is fixed in version 0.50.1. | |
| Title | cpp-httplib: Use-after-free of TLS session in WebSocketClient::shutdown_and_close() | |
| Weaknesses | CWE-416 | |
| References |
| |
| Metrics |
cvssV4_0
|