Use After Free Affecting rh-dotnet31-libcurl package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
2.49% (83rd percentile)

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  • Snyk IDSNYK-RHEL10-RHDOTNET31LIBCURL-12251450
  • published30 Aug 2025
  • disclosed17 May 2023

Introduced: 17 May 2023

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

How to fix?

There is no fixed version for RHEL:10 rh-dotnet31-libcurl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rh-dotnet31-libcurl package and not the rh-dotnet31-libcurl package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1