Vulnerabilities > CVE-2019-17042 - Improper Input Validation vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
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.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 1 | |
| OS | 2 | |
| OS | 1 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2019-1FB95AE48D.NASL description rebase to upstream version 8.1911.0 ------------------------------------------------- new modules available : - ClickHouse output - generic REST API http output - docker API input - misc. external program input (takes output of specified binary as log source) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 131251 published 2019-11-25 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131251 title Fedora 30 : rsyslog (2019-1fb95ae48d) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2019-1fb95ae48d. # include("compat.inc"); if (description) { script_id(131251); script_version("1.2"); script_cvs_date("Date: 2019/12/09"); script_cve_id("CVE-2019-17040", "CVE-2019-17041", "CVE-2019-17042"); script_xref(name:"FEDORA", value:"2019-1fb95ae48d"); script_name(english:"Fedora 30 : rsyslog (2019-1fb95ae48d)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "rebase to upstream version 8.1911.0 ------------------------------------------------- new modules available : - ClickHouse output - generic REST API http output - docker API input - misc. external program input (takes output of specified binary as log source) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2019-1fb95ae48d" ); script_set_attribute( attribute:"solution", value:"Update the affected rsyslog package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rsyslog"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:30"); script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/30"); script_set_attribute(attribute:"patch_publication_date", value:"2019/11/24"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/25"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^30([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 30", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC30", reference:"rsyslog-8.1911.0-1.fc30")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rsyslog"); }NASL family Fedora Local Security Checks NASL id FEDORA_2019-EA7D5876A4.NASL description rebase to upstream version 8.1911.0 ------------------------------------------------- new modules available : - ClickHouse output - generic REST API http output - docker API input - misc. external program input (takes output of specified binary as log source) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 131206 published 2019-11-22 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131206 title Fedora 31 : rsyslog (2019-ea7d5876a4) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory FEDORA-2019-ea7d5876a4. # include("compat.inc"); if (description) { script_id(131206); script_version("1.2"); script_cvs_date("Date: 2019/12/09"); script_cve_id("CVE-2019-17040", "CVE-2019-17041", "CVE-2019-17042"); script_xref(name:"FEDORA", value:"2019-ea7d5876a4"); script_name(english:"Fedora 31 : rsyslog (2019-ea7d5876a4)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "rebase to upstream version 8.1911.0 ------------------------------------------------- new modules available : - ClickHouse output - generic REST API http output - docker API input - misc. external program input (takes output of specified binary as log source) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://bodhi.fedoraproject.org/updates/FEDORA-2019-ea7d5876a4" ); script_set_attribute( attribute:"solution", value:"Update the affected rsyslog package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:rsyslog"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:31"); script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/30"); script_set_attribute(attribute:"patch_publication_date", value:"2019/11/22"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/22"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! preg(pattern:"^31([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 31", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC31", reference:"rsyslog-8.1911.0-1.fc31")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rsyslog"); }NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-2500.NASL description 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). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 131009 published 2019-11-14 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131009 title openSUSE Security Update : rsyslog (openSUSE-2019-2500) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2019-2500. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(131009); script_version("1.2"); script_cvs_date("Date: 2019/12/12"); script_cve_id("CVE-2019-17041", "CVE-2019-17042"); script_name(english:"openSUSE Security Update : rsyslog (openSUSE-2019-2500)"); script_summary(english:"Check for the openSUSE-2019-2500 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "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). This update was imported from the SUSE:SLE-15:Update update project." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1141063" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1153451" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1153459" ); script_set_attribute( attribute:"solution", value:"Update the affected rsyslog packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-diag-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-diag-tools-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-dbi"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-dbi-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-elasticsearch"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-elasticsearch-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-gcrypt"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-gcrypt-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-gssapi"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-gssapi-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-gtls"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-gtls-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-mmnormalize"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-mmnormalize-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-mysql"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-mysql-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-omamqp1"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-omamqp1-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-omhttpfs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:rsyslog-module-omhttpfs-debuginfo"); 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script_set_attribute(attribute:"vuln_publication_date", value:"2019/10/07"); script_set_attribute(attribute:"patch_publication_date", value:"2019/11/13"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/14"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE15\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "15.0", release); 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if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-elasticsearch-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-gcrypt-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-gcrypt-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-gssapi-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-gssapi-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-gtls-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-gtls-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-mmnormalize-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-mmnormalize-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-mysql-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-mysql-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-omamqp1-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-omamqp1-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-omhttpfs-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-omhttpfs-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-omtcl-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-omtcl-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-pgsql-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-pgsql-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-relp-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-relp-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-snmp-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-snmp-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-udpspoof-8.33.1-lp150.2.19.1") ) flag++; if ( rpm_check(release:"SUSE15.0", reference:"rsyslog-module-udpspoof-debuginfo-8.33.1-lp150.2.19.1") ) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rsyslog / rsyslog-debuginfo / rsyslog-debugsource / etc"); }NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1000.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1000 advisory. - rsyslog: heap-based overflow in contrib/pmaixforwardedfrom/pmaixforwardedfrom.c (CVE-2019-17041) - rsyslog: heap-based overflow in contrib/pmcisconames/pmcisconames.c (CVE-2019-17042) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-23 modified 2020-04-01 plugin id 135052 published 2020-04-01 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135052 title RHEL 7 : rsyslog (RHSA-2020:1000) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0424-1.NASL description 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). Non-security issues fixed: Handle multiline messages correctly when using the imfile module. (bsc#1015203) Fix a race condition in the shutdown sequence in wtp that was causing rsyslog not to shutdown properly. (bsc#1022804) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-18 modified 2020-02-20 plugin id 133839 published 2020-02-20 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/133839 title SUSE SLES12 Security Update : rsyslog (SUSE-SU-2020:0424-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2019-2937-1.NASL description 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). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 130899 published 2019-11-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/130899 title SUSE SLED15 / SLES15 Security Update : rsyslog (SUSE-SU-2019:2937-1) NASL family PhotonOS Local Security Checks NASL id PHOTONOS_PHSA-2019-2_0-0184_RSYSLOG.NASL description An update of the rsyslog package has been released. last seen 2020-06-01 modified 2020-06-02 plugin id 130204 published 2019-10-25 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/130204 title Photon OS 2.0: Rsyslog PHSA-2019-2.0-0184 NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2020-1000.NASL description The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1000 advisory. - rsyslog: heap-based overflow in contrib/pmaixforwardedfrom/pmaixforwardedfrom.c (CVE-2019-17041) - rsyslog: heap-based overflow in contrib/pmcisconames/pmcisconames.c (CVE-2019-17042) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-06 modified 2020-04-10 plugin id 135313 published 2020-04-10 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135313 title CentOS 7 : rsyslog (CESA-2020:1000) NASL family Scientific Linux Local Security Checks NASL id SL_20200407_RSYSLOG_ON_SL7_X.NASL description * rsyslog: heap-based overflow in contrib/pmaixforwardedfrom/pmaixforwardedfrom.c * rsyslog: heap-based overflow in contrib/pmcisconames/pmcisconames.c last seen 2020-04-30 modified 2020-04-21 plugin id 135835 published 2020-04-21 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/135835 title Scientific Linux Security Update : rsyslog on SL7.x x86_64 (20200407) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2229.NASL description According to the versions of the rsyslog packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2019-17041) - 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.(CVE-2019-17042) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-11-08 plugin id 130691 published 2019-11-08 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/130691 title EulerOS 2.0 SP5 : rsyslog (EulerOS-SA-2019-2229) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1060.NASL description According to the versions of the rsyslog packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2019-17042) - 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.(CVE-2019-17041) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 132814 published 2020-01-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/132814 title EulerOS Virtualization for ARM 64 3.0.5.0 : rsyslog (EulerOS-SA-2020-1060) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2418.NASL description According to the versions of the rsyslog packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2019-17041) - 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.(CVE-2019-17042) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-12-10 plugin id 131910 published 2019-12-10 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131910 title EulerOS 2.0 SP2 : rsyslog (EulerOS-SA-2019-2418) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2020-1702.NASL description The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1702 advisory. - rsyslog: heap-based overflow in contrib/pmaixforwardedfrom/pmaixforwardedfrom.c (CVE-2019-17041) - rsyslog: heap-based overflow in contrib/pmcisconames/pmcisconames.c (CVE-2019-17042) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-04-30 modified 2020-04-28 plugin id 136059 published 2020-04-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/136059 title RHEL 8 : rsyslog (RHSA-2020:1702) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-2501.NASL description 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). This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 131010 published 2019-11-14 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131010 title openSUSE Security Update : rsyslog (openSUSE-2019-2501) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2659.NASL description According to the versions of the rsyslog packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2019-17041) - 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.(CVE-2019-17042) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-12-18 plugin id 132194 published 2019-12-18 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/132194 title EulerOS 2.0 SP3 : rsyslog (EulerOS-SA-2019-2659) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1276.NASL description According to the versions of the rsyslog packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2019-17042) - 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.(CVE-2019-17041) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-26 modified 2020-03-20 plugin id 134742 published 2020-03-20 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134742 title EulerOS Virtualization 3.0.2.2 : rsyslog (EulerOS-SA-2020-1276) NASL family SuSE Local Security Checks NASL id SUSE_SU-2020-0512-1.NASL description 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). Non-security issues fixed: Handle multiline messages correctly when using the imfile module. (bsc#1015203) Fix a race condition in the shutdown sequence in wtp that was causing rsyslog not to shutdown properly. (bsc#1022804) Fixed a rsyslogd SIGABORT crash if a path does not exists (bsc#1087920). Fixed an issue where configuration templates where not consistently flushed (bsc#1084682). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-18 modified 2020-02-28 plugin id 134160 published 2020-02-28 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134160 title SUSE SLES12 Security Update : rsyslog (SUSE-SU-2020:0512-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2302.NASL description According to the versions of the rsyslog packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2019-17041) - 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.(CVE-2019-17042) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-03 modified 2019-11-27 plugin id 131368 published 2019-11-27 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131368 title EulerOS 2.0 SP8 : rsyslog (EulerOS-SA-2019-2302) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2020-1218.NASL description According to the versions of the rsyslog packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - 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.(CVE-2019-17042) - 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.(CVE-2019-17041) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-19 modified 2020-03-13 plugin id 134507 published 2020-03-13 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134507 title EulerOS Virtualization for ARM 64 3.0.2.0 : rsyslog (EulerOS-SA-2020-1218)
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References
- https://github.com/rsyslog/rsyslog/pull/3883
- https://github.com/rsyslog/rsyslog/blob/v8-stable/ChangeLog
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00032.html
- https://lists.debian.org/debian-lts-announce/2021/11/msg00030.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W6SUQE25RD37CD24BHKUWMG27U5RQ2FU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KPNCHI7X2IEXRH6RYD6IDPR4PLB5RPC7/