CVE-2020-20950

Description

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.

Category

5.9
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.24%
Third-Party Advisory ethz.ch Third-Party Advisory medium.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://archiv.infsec.ethz.ch/education/fs08/secsem/bleichenbacher98.pdf third party advisory technical description
http://microchip.com product
https://www.microchip.com/mplab/microchip-libraries-for-applications product
https://bi-zone.medium.com/silence-will-fall-or-how-it-can-take-2-years-to-get-your-vuln-registered-e6134846f5bb third party advisory technical description

Frequently Asked Questions

What is the severity of CVE-2020-20950?
CVE-2020-20950 has been scored as a medium severity vulnerability.
How to fix CVE-2020-20950?
To fix CVE-2020-20950, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-20950 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-20950 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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