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HistoryDec 29, 2021 - 10:57 p.m.

[SECURITY] [DLA 2870-1] apache-log4j2 security update

2021-12-2922:57:42
lists.debian.org
30

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

0.025 Low

EPSS

Percentile

89.9%


Debian LTS Advisory DLA-2870-1 [email protected]
https://www.debian.org/lts/security/ Markus Koschany
December 29, 2021 https://wiki.debian.org/LTS

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
Attachment:
signature.asc
Description: This is a digitally signed message part

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

0.025 Low

EPSS

Percentile

89.9%