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OVAL Definitions
>
OVAL Definition Details
Id
oval:ru.altx-soft.nix:def:175124
[Eng]
Version
4
Class
patch
ALTXid
387146
Language
Russian
Severity
Low
Title
ALT -- обновление безопасности для openvpn
Description
openvpn has been updated to 2.4.9-alt1.
Family
unix
Platform
ALT 9
Product
openvpn
Reference
VENDOR: p9-openvpn-17.11.2020
VENDOR: p9-openvpn-17.11.2020
Id:
p9-openvpn-17.11.2020
Reference:
https://packages.altlinux.org/ru/p9/srpms/openvpn
CVE: CVE-2020-11810
CVE: CVE-2020-11810
Id:
CVE-2020-11810
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11810
Comment
: 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.
CVSSv2 Score:
4.3
Access vector:
NETWORK
Access complexity:
MEDIUM
Authentication:
NONE
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
PARTIAL
CVSSv2 Vector:
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSSv3 Score:
3.7
Attack vector:
NETWORK
Attack complexity:
HIGH
Privileges required:
NONE
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
NONE
Availability impact:
LOW
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE:
362 (Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'))
References:
https://community.openvpn.net/openvpn/ticket/1272 (CONFIRM)
https://security-tracker.debian.org/tracker/CVE-2020-11810 (MISC)
https://patchwork.openvpn.net/patch/1079/ (CONFIRM)
https://bugzilla.suse.com/show_bug.cgi?id=1169925 (CONFIRM)
https://github.com/OpenVPN/openvpn/commit/37bc691e7d26ea4eb61a8a434ebd7a9ae76225ab (CONFIRM)
[debian-lts-announce] 20220503 [SECURITY] [DLA 2992-1] openvpn security update (MLIST)
FEDORA-2020-c1cb4ebcd9 ()
FEDORA-2020-969414e05b ()
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