openSUSE-SU-2021:4109-1: important: Security update for logback
openSUSE Security Update: Security update for logback
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Announcement ID: openSUSE-SU-2021:4109-1
Rating: important
References: #1193795
Cross-References: CVE-2021-44228
CVSS scores:
CVE-2021-44228 (NVD) : 10 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVE-2021-44228 (SUSE): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:
openSUSE Leap 15.3
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An update that fixes one vulnerability is now available.
Description:
This update for logback fixes the following issues:
Upgrade to version 1.2.8
+ In response to log4Shell/CVE-2021-44228, all JNDI lookup code in logback
has been disabled until further notice. This impacts ContextJNDISelector
and insertFromJNDI element in configuration files.
+ Also in response to log4Shell/CVE-2021-44228, all database (JDBC)
related code in the project has been removed with no replacement.
+ Note that the vulnerability mentioned in LOGBACK-1591 requires write
access to logback's configuration file as a prerequisite. The
log4Shell/CVE-2021-44228 and LOGBACK-1591 are of different severity
levels. A successful RCE requires all of the following conditions to be
met:
- write access to logback.xml
- use of versions lower then 1.2.8
- reloading of poisoned configuration data, which implies application
restart or scan="true" set prior to attack
Patch Instructions:
To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- openSUSE Leap 15.3:
zypper in -t patch openSUSE-SLE-15.3-2021-4109=1
Package List:
- openSUSE Leap 15.3 (noarch):
logback-1.2.8-3.3.1
logback-access-1.2.8-3.3.1
logback-examples-1.2.8-3.3.1
logback-javadoc-1.2.8-3.3.1
References:
https://www.suse.com/security/cve/CVE-2021-44228.html
https://bugzilla.suse.com/1193795
A logback security update has been released for openSUSE Leap 15.3.