CVE-2020-12105

low-risk
Published 2020-04-23

OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.

Do I need to act?

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0.17% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (2)

Openconnect

Affected Vendors

Opensuse Infradead

References (6)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00039.html
Third Party Advisory https://gitlab.com/openconnect/openconnect/-/merge_requests/96
Third Party Advisory https://security.gentoo.org/glsa/202006-15
Mailing List http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00039.html
Third Party Advisory https://gitlab.com/openconnect/openconnect/-/merge_requests/96
Third Party Advisory https://security.gentoo.org/glsa/202006-15
26
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 1/34 · Minimal
Exposure 7/34 · Low