Use After Free The advisory has been revoked - it doesn't affect any version of package jbcs-http24-curl  (opens in a new tab)


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EPSS
2.49% (83rd percentile)

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  • Snyk IDSNYK-RHEL9-JBCSHTTP24CURL-5539037
  • published17 May 2023
  • disclosed17 May 2023

Introduced: 17 May 2023

CVE-2023-28319  (opens in a new tab)
CWE-416  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jbcs-http24-curl package and not the jbcs-http24-curl package as distributed by RHEL.

A use after free vulnerability exists in curl <v8.1.0 in the way libcurl offers a feature to verify an SSH server's public key using a SHA 256 hash. When this check fails, libcurl would free the memory for the fingerprint before it returns an error message containing the (now freed) hash. This flaw risks inserting sensitive heap-based data into the error message that might be shown to users or otherwise get leaked and revealed.