CVE-2023-28322

2023-05-2600:00:00

CWE-200

hackerone

www.cve.org

information disclosure

curl

vulnerability

http

libcurl

read callback

put request

logic error

memory corruption

5.5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.2%

JSON

An information disclosure vulnerability exists in curl <v8.1.0 when doing HTTP(S) transfers, libcurl might erroneously use the read callback (CURLOPT_READFUNCTION) to ask for data to send, even when the CURLOPT_POSTFIELDS option has been set, if the same handle previously wasused to issue a PUT request which used that callback. This flaw may surprise the application and cause it to misbehave and either send off the wrong data or use memory after free or similar in the second transfer. The problem exists in the logic for a reused handle when it is (expected to be) changed from a PUT to a POST.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "https://github.com/curl/curl",
    "versions": [
      {
        "version": "Fixed in 8.1.0",
        "status": "affected"
      }
    ]
  }
]