Important: rsyslog

Issue Overview:

A flaw was found in the way rsyslog handled invalid log message priority values. In certain configurations, a local attacker, or a remote attacker able to connect to the rsyslog port, could use this flaw to crash the rsyslog daemon or, potentially in rsyslog 7.x, execute arbitrary code as the user running the rsyslog daemon. (CVE-2014-3634)

A flaw was found in rsyslog’s reception TCP modules. This flaw allows an attacker to craft a malicious message leading to a heap-based buffer overflow. This issue allows the attacker to corrupt or access data stored in memory, leading to a denial of service in the rsyslog or possible remote code execution. (CVE-2022-24903)

Affected Packages:

rsyslog

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update rsyslog to update your system.

New Packages:

aarch64:  
    rsyslog-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-crypto-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-elasticsearch-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-mmjsonparse-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-mmnormalize-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-mmaudit-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-mmsnmptrapd-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-libdbi-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-mysql-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-pgsql-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-gssapi-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-relp-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-gnutls-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-snmp-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-udpspoof-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-kafka-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-mmkubernetes-8.24.0-57.amzn2.2.0.1.aarch64  
    rsyslog-debuginfo-8.24.0-57.amzn2.2.0.1.aarch64  
  
i686:  
    rsyslog-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-crypto-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-elasticsearch-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-mmjsonparse-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-mmnormalize-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-mmaudit-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-mmsnmptrapd-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-libdbi-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-mysql-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-pgsql-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-gssapi-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-relp-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-gnutls-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-snmp-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-udpspoof-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-kafka-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-mmkubernetes-8.24.0-57.amzn2.2.0.1.i686  
    rsyslog-debuginfo-8.24.0-57.amzn2.2.0.1.i686  
  
noarch:  
    rsyslog-doc-8.24.0-57.amzn2.2.0.1.noarch  
  
src:  
    rsyslog-8.24.0-57.amzn2.2.0.1.src  
  
x86_64:  
    rsyslog-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-crypto-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-elasticsearch-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-mmjsonparse-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-mmnormalize-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-mmaudit-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-mmsnmptrapd-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-libdbi-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-mysql-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-pgsql-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-gssapi-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-relp-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-gnutls-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-snmp-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-udpspoof-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-kafka-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-mmkubernetes-8.24.0-57.amzn2.2.0.1.x86_64  
    rsyslog-debuginfo-8.24.0-57.amzn2.2.0.1.x86_64  

Additional References

Red Hat: CVE-2014-3634, CVE-2022-24903

Mitre: CVE-2014-3634, CVE-2022-24903