CVE-2020-20950
MEDIUMIetf Public Key Cryptography Standard... - Broken Cryptographic Algorithm
Title source: ruleDescription
Bleichenbacher's attack on PKCS #1 v1.5 padding for RSA in Microchip Libraries for Applications 2018-11-26 All up to 2018-11-26. The vulnerability can allow one to use Bleichenbacher's oracle attack to decrypt an encrypted ciphertext by making successive queries to the server using the vulnerable library, resulting in remote information disclosure.
References (4)
Core 4
Core References
Technical Description, Third Party Advisory x_refsource_misc
http://archiv.infsec.ethz.ch/education/fs08/secsem/bleichenbacher98.pdf
Product x_refsource_misc
http://microchip.com
Product x_refsource_misc
https://www.microchip.com/mplab/microchip-libraries-for-applications
Technical Description, Third Party Advisory x_refsource_misc
https://bi-zone.medium.com/silence-will-fall-or-how-it-can-take-2-years-to-get-your-vuln-registered-e6134846f5bb
Scores
CVSS v3
5.9
EPSS
0.0086
EPSS Percentile
53.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
CWE
CWE-327
Status
published
Products (2)
ietf/public_key_cryptography_standards_\#1
1.5
microchip/microchip_libraries_for_applications
< 2018-11-26
Published
Jan 19, 2021
Tracked Since
Feb 18, 2026