The client side in OpenSSH 5.7 through 8.3 has an Observable Discrepancy leading to an information leak in the algorithm negotiation
22345
07 November 2023
01 August 2023
OPEN
MEDIUM
5.9 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE-2020-14145
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Brocade Security Advisory ID |
BSA-2023-1048 |
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Component |
OpenSSH |
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Summary
The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.
Products Affected
All versions of Brocade Fabric OS
Brocade ASCG versions prior to v3.0
Products Confirmed Not Affected
Brocade SANnav
Solution
Solution provided in Brocade Fabric OS v9.1.1c, v9.2.0 and later versions
Solution provided in Brocade ASCG v3.0 and later versions
Revision History
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Version |
Change |
Date |
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1.0 |
Initial Publication |
August 1, 2023 |
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2.0 |
Added communication for ASCG |
November 7, 2023 |
Disclaimer
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