CVE-2020-12105
Published: 23 April 2020
OpenConnect through 8.08 mishandles negative return values from X509_check_ function calls, which might assist attackers in performing man-in-the-middle attacks.
Notes
Author | Note |
---|---|
mdeslaur | This only affects openconnect when built with OpenSSL. Debian and Ubuntu packages are built with GnuTLS, so are not affected. |
Priority
Status
Package | Release | Status |
---|---|---|
openconnect Launchpad, Ubuntu, Debian |
hirsute |
Ignored
(end of life)
|
xenial |
Not vulnerable
(code not compiled)
|
|
impish |
Ignored
(end of life)
|
|
bionic |
Not vulnerable
(code not compiled)
|
|
eoan |
Ignored
(end of life)
|
|
focal |
Not vulnerable
(code not compiled)
|
|
groovy |
Ignored
(end of life)
|
|
jammy |
Not vulnerable
(code not compiled)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(8.09)
|
|
Patches: upstream: https://gitlab.com/openconnect/openconnect/-/commit/f07242df8ad6a0fb1a5b5a584ca086f1a429ee0b |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.9 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N |