ELA-903-1 phpseclib security update

Improper Verification of Cryptographic Signature

2023-07-27
Packagephpseclib
Version1.0.19-1~deb9u1 (stretch)
Related CVEs CVE-2021-30130


The PHP Secure Communications Library is a fully PKCS#1 (v2.1) compliant RSA, DES, 3DES, RC4, Rijndael, AES, Blowfish, Twofish, SSH-1, SSH-2, SFTP, and X.509 implementation. This library mishandled RSA PKCS#1 v1.5 signature verification.



For Debian 9 stretch, these problems have been fixed in version 1.0.19-1~deb9u1.

We recommend that you upgrade your phpseclib packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.