Improper Verification of Cryptographic Signature Affecting strongswan package, versions <5.8.2-4.6.14
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-SLES151-STRONGSWAN-2714811
- published14 Apr 2022
- disclosed23 Mar 2020
Introduced: 23 Mar 2020
CVE-2018-6459 (opens in a new tab)How to fix?
Upgrade SLES:15.1 strongswan to version 5.8.2-4.6.14 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream strongswan package and not the strongswan package as distributed by SLES.
See How to fix? for SLES:15.1 relevant fixed versions and status.
The rsa_pss_params_parse function in libstrongswan/credentials/keys/signature_params.c in strongSwan 5.6.1 allows remote attackers to cause a denial of service via a crafted RSASSA-PSS signature that lacks a mask generation function parameter.
References
- https://www.suse.com/security/cve/CVE-2018-6459.html
- https://bugzilla.suse.com/1079548
- https://www.strongswan.org/blog/2018/02/19/strongswan-vulnerability-(cve-2018-6459).html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00047.html
- https://security.gentoo.org/glsa/201811-16
- https://www.strongswan.org/blog/2018/02/19/strongswan-vulnerability-%28cve-2018-6459%29.html