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.
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
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | curl | Not Affected | ||
| Amazon Linux 2 - Core | curl | 2023-08-31 | ALAS2-2023-2230 | Fixed |
| Amazon Linux 2023 | curl | 2023-07-19 | ALAS2023-2023-270 | Fixed |
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 |