vulnerability
SUSE: CVE-2020-11810: SUSE Linux Security Advisory
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Apr 13, 2020 | May 18, 2021 | Oct 22, 2021 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Apr 13, 2020
Added
May 18, 2021
Modified
Oct 22, 2021
Description
An issue was discovered in OpenVPN 2.4.x before 2.4.9. An attacker can inject a data channel v2 (P_DATA_V2) packet using a victim's peer-id. Normally such packets are dropped, but if this packet arrives before the data channel crypto parameters have been initialized, the victim's connection will be dropped. This requires careful timing due to the small time window (usually within a few seconds) between the victim client connection starting and the server PUSH_REPLY response back to the client. This attack will only work if Negotiable Cipher Parameters (NCP) is in use.
Solution(s)
suse-upgrade-openvpnsuse-upgrade-openvpn-auth-pam-pluginsuse-upgrade-openvpn-develsuse-upgrade-openvpn-down-root-plugin
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