VulnerabilityModified
CVE-2021-30130
phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.
HIGH 7.5EPSS 1.05%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.05%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
phpseclib before 2.0.31 and 3.x before 3.0.7 mishandles RSA PKCS#1 v1.5 signature verification.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- EPSS
- 1.05% probability · 62th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-347
- Affected
- phpseclib/phpseclib · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/phpseclib/phpseclib/pull/1635Patch, Third Party Advisory
- https://github.com/phpseclib/phpseclib/releases/tag/2.0.31Release Notes, Third Party Advisory
- https://github.com/phpseclib/phpseclib/releases/tag/3.0.7Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00024.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00025.htmlMailing List, Third Party Advisory
- https://github.com/phpseclib/phpseclib/pull/1635Patch, Third Party Advisory
- https://github.com/phpseclib/phpseclib/releases/tag/2.0.31Release Notes, Third Party Advisory
- https://github.com/phpseclib/phpseclib/releases/tag/3.0.7Release Notes, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00024.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00025.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.