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CVE-2023-28319

Public on 2023-05-17
Modified on 2024-02-01
Description

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.

Severity
Medium
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CVSS v3 Base Score
5.9
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core curl 2023-08-31 22:29 ALAS2-2023-2230
Amazon Linux 2023 curl 2023-07-19 21:24 ALAS2023-2023-270

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD CVSSv3 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N