Security update for log4j SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2021:4094-1 Final 1 1 2021-12-15T10:17:28Z current 2021-12-15T10:17:28Z 2021-12-15T10:17:28Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for log4j This update for log4j fixes the following issue: CVE-2021-44228: The previously published fix by upstream turned out to be incomplete. Therefore, upstream has recommended disabling JNDI support in log4j by default to be completely sure that this vulnerability cannot be exploited. This update implements that recommendation and disables JNDI support by default. [bsc#1193611, CVE-2021-44228] CVE-2021-45046: A Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack is also fixed by disabling JNDI support by default (bsc#1193743) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-SLE-15.3-2021-4094 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RDZ2MV2SSNKVN4EVV5AQ3HGQ2G4U2JHS/ E-Mail link for openSUSE-SU-2021:4094-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1193611 SUSE Bug 1193611 https://bugzilla.suse.com/1193743 SUSE Bug 1193743 https://www.suse.com/security/cve/CVE-2021-44228/ SUSE CVE CVE-2021-44228 page https://www.suse.com/security/cve/CVE-2021-45046/ SUSE CVE CVE-2021-45046 page openSUSE Leap 15.3 log4j-2.13.0-4.6.1 log4j-javadoc-2.13.0-4.6.1 log4j-jcl-2.13.0-4.6.1 log4j-slf4j-2.13.0-4.6.1 log4j-2.13.0-4.6.1 as a component of openSUSE Leap 15.3 log4j-javadoc-2.13.0-4.6.1 as a component of openSUSE Leap 15.3 log4j-jcl-2.13.0-4.6.1 as a component of openSUSE Leap 15.3 log4j-slf4j-2.13.0-4.6.1 as a component of openSUSE Leap 15.3 Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) 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 log4j 2.15.0, this behavior has been disabled by default. From version 2.16.0 (along with 2.12.2, 2.12.3, and 2.3.1), this functionality has been completely removed. Note that this vulnerability is specific to log4j-core and does not affect log4net, log4cxx, or other Apache Logging Services projects. CVE-2021-44228 openSUSE Leap 15.3:log4j-2.13.0-4.6.1 openSUSE Leap 15.3:log4j-javadoc-2.13.0-4.6.1 openSUSE Leap 15.3:log4j-jcl-2.13.0-4.6.1 openSUSE Leap 15.3:log4j-slf4j-2.13.0-4.6.1 critical To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RDZ2MV2SSNKVN4EVV5AQ3HGQ2G4U2JHS/ https://www.suse.com/security/cve/CVE-2021-44228.html CVE-2021-44228 https://bugzilla.suse.com/1193611 SUSE Bug 1193611 https://bugzilla.suse.com/1193662 SUSE Bug 1193662 https://bugzilla.suse.com/1193743 SUSE Bug 1193743 https://bugzilla.suse.com/1193795 SUSE Bug 1193795 https://bugzilla.suse.com/1194016 SUSE Bug 1194016 https://bugzilla.suse.com/1194123 SUSE Bug 1194123 https://bugzilla.suse.com/1202994 SUSE Bug 1202994 It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows 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 an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default. CVE-2021-45046 openSUSE Leap 15.3:log4j-2.13.0-4.6.1 openSUSE Leap 15.3:log4j-javadoc-2.13.0-4.6.1 openSUSE Leap 15.3:log4j-jcl-2.13.0-4.6.1 openSUSE Leap 15.3:log4j-slf4j-2.13.0-4.6.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/RDZ2MV2SSNKVN4EVV5AQ3HGQ2G4U2JHS/ https://www.suse.com/security/cve/CVE-2021-45046.html CVE-2021-45046 https://bugzilla.suse.com/1193743 SUSE Bug 1193743