Bug 1838644 (CVE-2020-12105) - CVE-2020-12105 openconnect: incorrect use of negative return values from X509_check_ functions can lead to MITM attacks
Summary: CVE-2020-12105 openconnect: incorrect use of negative return values from X509...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2020-12105
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1838646 1838647
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-05-21 13:41 UTC by Guilherme de Almeida Suckevicz
Modified: 2020-05-21 15:15 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2020-05-21 15:15:32 UTC
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Description Guilherme de Almeida Suckevicz 2020-05-21 13:41:26 UTC
OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.

Reference:
https://gitlab.com/openconnect/openconnect/-/merge_requests/96

Comment 1 Guilherme de Almeida Suckevicz 2020-05-21 13:42:10 UTC
Created openconnect tracking bugs for this issue:

Affects: epel-all [bug 1838647]
Affects: fedora-all [bug 1838646]

Comment 2 Product Security DevOps Team 2020-05-21 15:15:32 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.


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