3.7 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.002 Low
EPSS
Percentile
56.1%
Debian Security Advisory DSA-5020-1 [email protected]
https://www.debian.org/security/ Markus Koschany
December 11, 2021 https://www.debian.org/security/faq
Package : apache-log4j2
CVE ID : CVE-2021-44228 CVE-2020-9488
Debian Bug : 959450 1001478
Chen Zhaojun of Alibaba Cloud Security Team discovered a critical security
vulnerability in Apache Log4j, a popular Logging Framework for Java. JNDI
features used in configuration, log messages, and parameters do not protect
against attacker controlled LDAP and other JNDI related endpoints. An attacker
who can control log messages or log message parameters can execute arbitrary
code loaded from LDAP servers when message lookup substitution is enabled. From
version 2.15.0, this behavior has been disabled by default.
This update also fixes CVE-2020-9488 in the oldstable distribution
(buster). Improper validation of certificate with host mismatch in Apache Log4j
SMTP appender. This could allow an SMTPS connection to be intercepted by a
man-in-the-middle attack which could leak any log messages sent through that
appender.
For the oldstable distribution (buster), this problem has been fixed
in version 2.15.0-1~deb10u1.
For the stable distribution (bullseye), this problem has been fixed in
version 2.15.0-1~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 | 9 | all | apache-log4j2 | < 2.12.3-0+deb9u1 | apache-log4j2_2.12.3-0+deb9u1_all.deb |
Debian | 11 | all | liblog4j2-java | < 2.15.0-1~deb11u1 | liblog4j2-java_2.15.0-1~deb11u1_all.deb |
Debian | 11 | all | apache-log4j2 | < 2.15.0-1~deb11u1 | apache-log4j2_2.15.0-1~deb11u1_all.deb |
Debian | 9 | all | liblog4j2-java | < 2.12.3-0+deb9u1 | liblog4j2-java_2.12.3-0+deb9u1_all.deb |
Debian | 10 | all | apache-log4j2 | < 2.15.0-1~deb10u1 | apache-log4j2_2.15.0-1~deb10u1_all.deb |
Debian | 10 | all | liblog4j2-java | < 2.15.0-1~deb10u1 | liblog4j2-java_2.15.0-1~deb10u1_all.deb |
3.7 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
0.002 Low
EPSS
Percentile
56.1%