5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.4 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
53.5%
Debian LTS Advisory DLA-2909-1 [email protected]
https://www.debian.org/lts/security/ Utkarsh Gupta
February 03, 2022 https://wiki.debian.org/LTS
Package : strongswan
Version : 5.5.1-4+deb9u6
CVE ID : CVE-2021-45079
Zhuowei Zhang discovered a bug in the EAP authentication client code
of strongSwan, an IKE/IPsec suite, that may allow to bypass the client
and in some scenarios even the server authentication, or could lead to
a denial-of-service attack.
For Debian 9 stretch, this problem has been fixed in version
5.5.1-4+deb9u6.
We recommend that you upgrade your strongswan packages.
For the detailed security status of strongswan please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/strongswan
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:N/A:P
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
9.4 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
53.5%