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SUSE-SU-2019:2937-1

Опубликовано: 08 нояб. 2019
Источник: suse-cvrf

Описание

Security update for rsyslog

This update for rsyslog fixes the following issues:

Security issues fixed:

  • CVE-2019-17041: Fixed a heap overflow in the parser for AIX log messages (bsc#1153451).
  • CVE-2019-17042: Fixed a heap overflow in the parser for Cisco log messages (bsc#1153459).

Other issue addressed:

  • Fixed an issue where rsyslog was SEGFAULT due to a mutex double-unlock (bsc#1141063).

Список пакетов

SUSE Linux Enterprise Module for Basesystem 15
rsyslog-8.33.1-3.22.4
SUSE Linux Enterprise Module for Basesystem 15 SP1
rsyslog-8.33.1-3.22.4
SUSE Linux Enterprise Module for Server Applications 15
rsyslog-module-gssapi-8.33.1-3.22.4
rsyslog-module-gtls-8.33.1-3.22.4
rsyslog-module-mmnormalize-8.33.1-3.22.4
rsyslog-module-mysql-8.33.1-3.22.4
rsyslog-module-pgsql-8.33.1-3.22.4
rsyslog-module-relp-8.33.1-3.22.4
rsyslog-module-snmp-8.33.1-3.22.4
rsyslog-module-udpspoof-8.33.1-3.22.4
SUSE Linux Enterprise Module for Server Applications 15 SP1
rsyslog-module-gssapi-8.33.1-3.22.4
rsyslog-module-gtls-8.33.1-3.22.4
rsyslog-module-mmnormalize-8.33.1-3.22.4
rsyslog-module-mysql-8.33.1-3.22.4
rsyslog-module-pgsql-8.33.1-3.22.4
rsyslog-module-relp-8.33.1-3.22.4
rsyslog-module-snmp-8.33.1-3.22.4
rsyslog-module-udpspoof-8.33.1-3.22.4

Ссылки

Описание

An issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overflow in the parser for AIX log messages. The parser tries to locate a log message delimiter (in this case, a space or a colon) but fails to account for strings that do not satisfy this constraint. If the string does not match, then the variable lenMsg will reach the value zero and will skip the sanity check that detects invalid log messages. The message will then be considered valid, and the parser will eat up the nonexistent colon delimiter. In doing so, it will decrement lenMsg, a signed integer, whose value was zero and now becomes minus one. The following step in the parser is to shift left the contents of the message. To do this, it will call memmove with the right pointers to the target and destination strings, but the lenMsg will now be interpreted as a huge value, causing a heap overflow.

Затронутые продукты
SUSE Linux Enterprise Module for Basesystem 15 SP1:rsyslog-8.33.1-3.22.4
SUSE Linux Enterprise Module for Basesystem 15:rsyslog-8.33.1-3.22.4
SUSE Linux Enterprise Module for Server Applications 15 SP1:rsyslog-module-gssapi-8.33.1-3.22.4
SUSE Linux Enterprise Module for Server Applications 15 SP1:rsyslog-module-gtls-8.33.1-3.22.4
Ссылки

Описание

An issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the parser for Cisco log messages. The parser tries to locate a log message delimiter (in this case, a space or a colon), but fails to account for strings that do not satisfy this constraint. If the string does not match, then the variable lenMsg will reach the value zero and will skip the sanity check that detects invalid log messages. The message will then be considered valid, and the parser will eat up the nonexistent colon delimiter. In doing so, it will decrement lenMsg, a signed integer, whose value was zero and now becomes minus one. The following step in the parser is to shift left the contents of the message. To do this, it will call memmove with the right pointers to the target and destination strings, but the lenMsg will now be interpreted as a huge value, causing a heap overflow.

Затронутые продукты
SUSE Linux Enterprise Module for Basesystem 15 SP1:rsyslog-8.33.1-3.22.4
SUSE Linux Enterprise Module for Basesystem 15:rsyslog-8.33.1-3.22.4
SUSE Linux Enterprise Module for Server Applications 15 SP1:rsyslog-module-gssapi-8.33.1-3.22.4
SUSE Linux Enterprise Module for Server Applications 15 SP1:rsyslog-module-gtls-8.33.1-3.22.4
Ссылки