CVE-2021-30130

high

Description

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

References

https://github.com/phpseclib/phpseclib/releases/tag/2.0.31

https://github.com/phpseclib/phpseclib/pull/1635

https://github.com/phpseclib/phpseclib/releases/tag/3.0.7

https://lists.debian.org/debian-lts-announce/2022/11/msg00024.html

https://lists.debian.org/debian-lts-announce/2022/11/msg00025.html

Details

Source: MITRE

Published: 2021-04-06

Updated: 2023-01-27

Type: CWE-347

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH