6.6 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
8.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:S/C:C/I:C/A:C
0.022 Low
EPSS
Percentile
89.4%
Package : apache-log4j2
Version : 2.12.4-0+deb9u1
CVE ID : CVE-2021-44832
Debian Bug : 1002813
Apache Log4j2, a Java Logging Framework, is vulnerable to a remote code
execution (RCE) attack where an attacker with permission to modify the logging
configuration file can construct a malicious configuration using a JDBC
Appender with a data source referencing a JNDI URI which can execute remote
code. This issue is fixed by limiting JNDI data source names to the java
protocol.
For Debian 9 stretch, this problem has been fixed in version
2.12.4-0+deb9u1.
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 LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | all | apache-log4j2 | < 2.12.4-0+deb9u1 | apache-log4j2_2.12.4-0+deb9u1_all.deb |
6.6 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
8.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:S/C:C/I:C/A:C
0.022 Low
EPSS
Percentile
89.4%