CVE-2020-12105
MEDIUMCVSS 5.9/10EPSS 1.70%
Last modified
CVE-2020-12105 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.. EPSS estimates a 1.70% chance of exploitation in the next 30 days.
Description
OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Infradead | Openconnect | <= 8.08 |
| Opensuse | Leap | 15.1 |
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00039.htmlMailing List, Third Party Advisory
- https://gitlab.com/openconnect/openconnect/-/merge_requests/96Third Party Advisory
- https://security.gentoo.org/glsa/202006-15Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00039.htmlMailing List, Third Party Advisory
- https://gitlab.com/openconnect/openconnect/-/merge_requests/96Third Party Advisory
- https://security.gentoo.org/glsa/202006-15Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-12105?
OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.
How severe is CVE-2020-12105?
CVE-2020-12105 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 1.70% probability of exploitation in the next 30 days.
How do I fix CVE-2020-12105?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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Are you affected by CVE-2020-12105?
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Scan your code nowSource: NVD / NIST