The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature. For example, this can be triggered by an unrelated self-signed CA certificate sent by an initiator. Remote code execution cannot occur.
CPE | Name | Operator | Version |
---|---|---|---|
debian_linux | eq | 10.0 | |
debian_linux | eq | 11.0 | |
fedora | eq | 33 | |
fedora | eq | 34 | |
fedora | eq | 35 | |
strongswan | ge | 5.6.1 | |
strongswan | lt | 5.9.4 |
cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf
github.com/strongswan/strongswan/releases/tag/5.9.4
lists.fedoraproject.org/archives/list/[email protected]/message/5FJSATD2R2XHTG4P63GCMQ2N7EWKMME5/
lists.fedoraproject.org/archives/list/[email protected]/message/WQSQ3BEC22NF4NCDZVCT4P3Q2ZIAJXGJ/
lists.fedoraproject.org/archives/list/[email protected]/message/Y3TQ32JLJOBJDB2EJKSX2PBPB5NFG2D4/
www.debian.org/security/2021/dsa-4989
www.strongswan.org/blog/2021/10/18/strongswan-vulnerability-(cve-2021-41990).html