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CVE-2017-9022: Insufficient validation of RSA public keys passed to the gmp plugin

RSA public keys passed to the gmp plugin aren’t validated sufficiently before attempting signature verification, so that invalid input might lead to a floating point
exception and crash of the process. A certificate with an appropriately prepared public key sent by a peer could be used for a denial-of-service attack.

Affected versions:

All versions since 4.4.0, up to and including 5.5.2.

Fixed In Version:

strongswan 5.5.3

References:

https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-(cve-2017-9022).html

Patches:

https://download.strongswan.org/security/CVE-2017-9022/

CVE-2017-9023: Incorrect Handling of CHOICE types in ASN.1 parser and x509 plugin

ASN.1 CHOICE types are not correctly handled by the ASN.1 parser when parsing X.509 certificates with extensions that use such types.
This could lead to infinite looping of the thread parsing a specifically crafted certificate.

Affected versions:

All strongSwan versions up to and including 5.5.2

Fixed In Version:

strongswan 5.5.3

References:

https://www.strongswan.org/blog/2017/05/30/strongswan-vulnerability-(cve-2017-9023).html

Patches:

https://download.strongswan.org/security/CVE-2017-9023/

(from redmine: issue id 7346, created on 2017-05-31, closed on 2017-06-15)

• Relations:
  • child #7347 (closed)
  • child #7348 (closed)
  • child #7349 (closed)
  • child #7350 (closed)