DOS for Handling of crafted recursive ASN.1 structures
22347
01 August 2023
01 August 2023
OPEN
MEDIUM
6.5 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVE-2018-0739
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Brocade Security Advisory ID |
BSA-2023-562 |
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Component |
OpenSSL |
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Summary
Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources, so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).
Products Affected
Brocade Fabric OS v8.x
Products Confirmed Not Affected
Brocade Fabric OS v9.x and v7.x are not affected by this vulnerability
Brocade SANnav and Brocade ASCG is not affected by this vulnerability
Solution
Solution provided in Brocade Fabric OS v8.2.3c and later v8.2.3x versions
Solution also provided in Brocade Fabric OS v8.2.0_CBN5 and later versions
Revision History
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Version |
Change |
Date |
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1.0 |
Initial Publication |
August 1, 2023 |
Disclaimer
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