Use of Incorrectly-Resolved Name or Reference Affecting curl package, versions <7.52.1-5+deb9u15


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.15% (53rd percentile)

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  • Snyk IDSNYK-DEBIAN9-CURL-1322654
  • published22 Jul 2021
  • disclosed5 Aug 2021

Introduced: 22 Jul 2021

CVE-2021-22924  (opens in a new tab)
CWE-706  (opens in a new tab)

How to fix?

Upgrade Debian:9 curl to version 7.52.1-5+deb9u15 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

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.

References

CVSS Scores

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