4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
8.6 High
AI Score
Confidence
Low
0.966 High
EPSS
Percentile
99.6%
Hideki Okamoto and Guy Lederfein discovered that Apache Log4j 2 did not
protect against infinite recursion in lookup evaluation. A remote attacker
could possibly use this issue to cause Apache Log4j 2 to crash, leading to
a denial of service.
Please see the following link for more information:
<https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/Log4Shell>
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 21.10 | noarch | liblog4j2-java | < 2.17.0-0.21.10.1 | UNKNOWN |
Ubuntu | 21.04 | noarch | liblog4j2-java | < 2.17.0-0.21.04.1 | UNKNOWN |
Ubuntu | 20.04 | noarch | liblog4j2-java | < 2.17.0-0.20.04.1 | UNKNOWN |
Ubuntu | 20.04 | noarch | liblog4j2-java-doc | < 2.17.0-0.20.04.1 | UNKNOWN |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
8.6 High
AI Score
Confidence
Low
0.966 High
EPSS
Percentile
99.6%