High severity · published Oct 18, 2021
CVE-2021-41990
The gmp plugin in strongSwan before 5.9.4 has a remote integer overflow via a crafted certificate with an RSASSA-PSS signature
7.5
CVSS
7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.0% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
6F
6gk5615-0aa00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5804-0ap00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5812-1aa00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5812-1ba00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5816-1aa00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5816-1ba00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5826-2ab00-2ab2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5856-2ea00-3aa1 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5856-2ea00-3da1 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5874-2aa00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5874-3aa00-2aa2 Firmware · Siemens
All versions, or not specified · source: NVD
6F
6gk5876-3aa02-2ba2 Firmware · Siemens
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-41990
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-41990
Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf
Release Notes
https://github.com/strongswan/strongswan/releases/tag/5.9.4
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5FJSATD2R2XHTG4P63GCMQ2N7EWKMME5/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WQSQ3BEC22NF4NCDZVCT4P3Q2ZIAJXGJ/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3TQ32JLJOBJDB2EJKSX2PBPB5NFG2D4/
Third Party Advisory
https://www.debian.org/security/2021/dsa-4989
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