CVE-2021-30130

Description

phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.16%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory debian.org Third-Party Advisory debian.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/phpseclib/phpseclib/pull/1635 third party advisory patch
https://github.com/phpseclib/phpseclib/releases/tag/3.0.7 third party advisory release notes
https://github.com/phpseclib/phpseclib/releases/tag/2.0.31 third party advisory release notes
https://lists.debian.org/debian-lts-announce/2022/11/msg00024.html third party advisory mailing list
https://lists.debian.org/debian-lts-announce/2022/11/msg00025.html third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2021-30130?
CVE-2021-30130 has been scored as a high severity vulnerability.
How to fix CVE-2021-30130?
To fix CVE-2021-30130, 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-2021-30130 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-30130 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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