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cvelistHackeroneCVELIST:CVE-2021-22924
HistoryAug 05, 2021 - 8:16 p.m.

CVE-2021-22924

2021-08-0520:16:56
CWE-20
hackerone
www.cve.org

6 Medium

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

53.6%

libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take ‘issuercert’ into account and it compared the involved paths case insensitively,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn’t include the ‘issuer cert’ which a transfer can setto qualify how to verify the server certificate.

CNA Affected

[
  {
    "product": "https://github.com/curl/curl",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "curl 7.10.4 to and include curl 7.77.0"
      }
    ]
  }
]

References