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prionPRIOn knowledge basePRION:CVE-2023-28322
HistoryMay 26, 2023 - 9:15 p.m.

Information disclosure

2023-05-2621:15:00
PRIOn knowledge base
www.prio-n.com
11
curl
vulnerability
http transfers
libcurl
read callback
data send
put request
misbehave
memory

5.3 Medium

AI Score

Confidence

Low

0.001 Low

EPSS

Percentile

48.2%

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.