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ubuntuUbuntuUSN-4933-1
HistoryMay 04, 2021 - 12:00 a.m.

OpenVPN vulnerabilities

2021-05-0400:00:00
ubuntu.com
114

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

6.5 Medium

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

0.021 Low

EPSS

Percentile

88.9%

JSON

Releases

  • Ubuntu 21.04
  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • openvpn - virtual private network software

Details

It was discovered that OpenVPN incorrectly handled certain data channel v2
packets. A remote attacker could possibly use this issue to inject packets
using a victim’s peer-id. This issue only affected Ubuntu 18.04 LTS and
Ubuntu 20.04 LTS. (CVE-2020-11810)

It was discovered that OpenVPN incorrectly handled deferred authentication.
When a server is configured to use deferred authentication, a remote
attacker could possibly use this issue to bypass authentication and access
control channel data. (CVE-2020-15078)

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchopenvpn< 2.5.1-1ubuntu1.1UNKNOWN
Ubuntu21.04noarchopenvpn-dbgsym< 2.5.1-1ubuntu1.1UNKNOWN
Ubuntu20.10noarchopenvpn< 2.4.9-3ubuntu1.1UNKNOWN
Ubuntu20.10noarchopenvpn-dbgsym< 2.4.9-3ubuntu1.1UNKNOWN
Ubuntu20.04noarchopenvpn< 2.4.7-1ubuntu2.20.04.2UNKNOWN
Ubuntu20.04noarchopenvpn-dbgsym< 2.4.7-1ubuntu2.20.04.2UNKNOWN
Ubuntu18.04noarchopenvpn< 2.4.4-2ubuntu1.5UNKNOWN
Ubuntu18.04noarchopenvpn-dbgsym< 2.4.4-2ubuntu1.5UNKNOWN

Related

openvas 15
nessus 14
osv 4
suse 1
debian 1
fedora 6
gentoo 1
mageia 2
debiancve 2
prion 2
freebsd 2
amazon 2
veracode 2
alpinelinux 2
ubuntucve 2
cve 2
redos 17
slackware 1
altlinux 1
archlinux 1
ibm 1
openvas
openvas
Ubuntu: Security Advisory (USN-4933-1)
2021-05-05 00:00:00
openSUSE: Security Advisory for openvpn (openSUSE-SU-2021:0734-1)
2021-05-17 00:00:00
SUSE: Security Advisory (SUSE-SU-2021:1577-1)
2021-06-09 00:00:00
nessus
nessus
Ubuntu 18.04 LTS / 20.04 LTS : OpenVPN vulnerabilities (USN-4933-1)
2021-05-04 00:00:00
SUSE SLED15 / SLES15 Security Update : openvpn (SUSE-SU-2021:1577-1)
2021-05-13 00:00:00
openSUSE Security Update : openvpn (openSUSE-2021-734)
2021-05-18 00:00:00
osv
osv
openvpn vulnerabilities
2021-05-04 11:59:09
openvpn - security update
2022-05-03 00:00:00
CVE-2020-15078
2021-04-26 14:15:08
suse
suse
Security update for openvpn (moderate)
2021-05-15 00:00:00
debian
debian
[SECURITY] [DLA 2992-1] openvpn security update
2022-05-03 12:18:30
fedora
fedora
[SECURITY] Fedora 34 Update: openvpn-2.5.2-1.fc34
2021-04-26 00:27:08
[SECURITY] Fedora 32 Update: openvpn-2.4.11-1.fc32
2021-04-29 01:22:33
[SECURITY] Fedora 33 Update: openvpn-2.4.11-1.fc33
2021-04-24 18:07:09
gentoo
gentoo
OpenVPN: Authentication bypass
2021-05-26 00:00:00
mageia
mageia
Updated openvpn packages fix a security vulnerability
2021-06-29 20:31:40
Updated openvpn packages fix security vulnerability
2020-05-05 15:20:37
debiancve
debiancve
CVE-2020-15078
2021-04-26 14:15:00
CVE-2020-11810
2020-04-27 15:15:00
prion
prion
Authentication flaw
2021-04-26 14:15:00
Code injection
2020-04-27 15:15:00
freebsd
freebsd
openvpn -- deferred authentication can be bypassed in specific circumstances
2021-03-02 00:00:00
openvpn -- illegal client float can break VPN session for other users
2020-04-13 00:00:00
amazon
amazon
Important: openvpn
2021-09-02 22:54:00
Medium: openvpn
2020-07-28 03:26:00
veracode
veracode
Information Disclosure
2021-04-29 19:55:48
Injection Vulnerability
2021-04-29 11:40:11
alpinelinux
alpinelinux
CVE-2020-15078
2021-04-26 14:15:00
CVE-2020-11810
2020-04-27 15:15:00
ubuntucve
ubuntucve
CVE-2020-15078
2021-04-26 00:00:00
CVE-2020-11810
2020-04-27 00:00:00
cve
cve
CVE-2020-15078
2021-04-26 14:15:00
CVE-2020-11810
2020-04-27 15:15:00
redos
redos
ROS-2-448
2021-09-08 00:00:00
ROS-2-641
2021-09-08 00:00:00
ROS-2-511
2021-09-08 00:00:00
slackware
slackware
[slackware-security] openvpn
2020-04-17 04:52:16
altlinux
altlinux
Security fix for the ALT Linux 9 package openvpn version 2.4.9-alt1
2020-11-19 00:00:00
archlinux
archlinux
[ASA-202004-16] openvpn: denial of service
2020-04-17 00:00:00
ibm
ibm
Security Bulletin: A vulnerability was identified and remediated in the IBM MaaS360 Cloud Extender (V2.103.000.051) and Modules
2021-08-10 20:52:02

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

6.5 Medium

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

0.021 Low

EPSS

Percentile

88.9%

JSON
Related for USN-4933-1
openvas15nessus14osv4suse1debian1fedora6gentoo1mageia2debiancve2prion2freebsd2amazon2veracode2alpinelinux2ubuntucve2cve2redos17slackware1altlinux1archlinux1ibm1