Vulnerability Details : 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. For example, this can be triggered by an unrelated self-signed CA certificate sent by an initiator. Remote code execution cannot occur.
Vulnerability category: OverflowExecute code
Products affected by CVE-2021-41990
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk6108-4am00-2ba2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk6108-4am00-2da2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5804-0ap00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5812-1aa00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5812-1ba00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5816-1aa00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5816-1ba00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5826-2ab00-2ab2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5874-2aa00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5874-3aa00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5876-3aa02-2ba2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5876-3aa02-2ea2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5876-4aa00-2ba2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5876-4aa00-2da2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5856-2ea00-3da1_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5856-2ea00-3aa1_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:6gk5615-0aa00-2aa2_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:a:strongswan:strongswan:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41990
11.17%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41990
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-41990
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The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-41990
-
https://www.strongswan.org/blog/2021/10/18/strongswan-vulnerability-(cve-2021-41990).html
strongSwan - strongSwan Vulnerability (CVE-2021-41990)Vendor Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-539476.pdf
Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y3TQ32JLJOBJDB2EJKSX2PBPB5NFG2D4/
[SECURITY] Fedora 35 Update: strongswan-5.9.4-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.debian.org/security/2021/dsa-4989
Debian -- Security Information -- DSA-4989-1 strongswanThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WQSQ3BEC22NF4NCDZVCT4P3Q2ZIAJXGJ/
[SECURITY] Fedora 33 Update: strongswan-5.9.4-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5FJSATD2R2XHTG4P63GCMQ2N7EWKMME5/
[SECURITY] Fedora 34 Update: strongswan-5.9.4-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/strongswan/strongswan/releases/tag/5.9.4
Release strongSwan 5.9.4 · strongswan/strongswan · GitHubRelease Notes;Third Party Advisory
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