9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.974 High
EPSS
Percentile
99.9%
Debian Security Advisory DSA-5022-1 [email protected]
https://www.debian.org/security/ Markus Koschany
December 16, 2021 https://www.debian.org/security/faq
Package : apache-log4j2
CVE ID : CVE-2021-45046
Debian Bug : 1001729
It was found that the fix to address CVE-2021-44228 in Apache Log4j, a Logging
Framework for Java, was incomplete in certain non-default configurations. This
could allow attackers with control over Thread Context Map (MDC) input data
when the logging configuration uses a non-default Pattern Layout with either a
Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern
(%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern
resulting in a denial of service (DOS) attack.
For the oldstable distribution (buster), this problem has been fixed
in version 2.16.0-1~deb10u1.
For the stable distribution (bullseye), this problem has been fixed in
version 2.16.0-1~deb11u1.
We recommend that you upgrade your apache-log4j2 packages.
For the detailed security status of apache-log4j2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/apache-log4j2
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: [email protected]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | all | liblog4j2-java | < 2.16.0-1~deb10u1 | liblog4j2-java_2.16.0-1~deb10u1_all.deb |
Debian | 11 | all | liblog4j2-java | < 2.16.0-1~deb11u1 | liblog4j2-java_2.16.0-1~deb11u1_all.deb |
Debian | 11 | all | apache-log4j2 | < 2.16.0-1~deb11u1 | apache-log4j2_2.16.0-1~deb11u1_all.deb |
Debian | 10 | all | apache-log4j2 | < 2.16.0-1~deb10u1 | apache-log4j2_2.16.0-1~deb10u1_all.deb |
9 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.974 High
EPSS
Percentile
99.9%