Vulnerabilities > CVE-2016-7797 - 7PK - Security Features vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
Pacemaker before 1.1.15, when using pacemaker remote, might allow remote attackers to cause a denial of service (node disconnection) via an unauthenticated connection.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3462-1.NASL description Jan Pokorny and Alain Moulle discovered that Pacemaker incorrectly handled the IPC interface. A local attacker could possibly use this issue to execute arbitrary code with root privileges. (CVE-2016-7035) Alain Moulle discovered that Pacemaker incorrectly handled authentication. A remote attacker could possibly use this issue to shut down connections, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS. (CVE-2016-7797). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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 104143 published 2017-10-25 reporter Ubuntu Security Notice (C) 2017-2019 Canonical, Inc. / NASL script (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/104143 title Ubuntu 14.04 LTS / 16.04 LTS : pacemaker vulnerabilities (USN-3462-1) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-1376.NASL description This update for pacemaker fixes the following issues : Security issues fixed : - CVE-2016-7797: Notify other clients of a new connection only if the handshake has completed (bsc#967388, bsc#1002767). - CVE-2016-7035: Fixed improper IPC guarding in pacemaker (bsc#1007433). Bug fixes : - bsc#1003565: crmd: Record pending operations in the CIB before they are performed - bsc#1000743: pengine: Do not fence a maintenance node if it shuts down cleanly - bsc#987348: ping: Avoid temporary files for fping check - bsc#986644: libcrmcommon: report errors consistently when waiting for data on connection - bsc#986644: remote: Correctly calculate the remaining timeouts when receiving messages This update was imported from the SUSE:SLE-12-SP2:Update update project. last seen 2020-06-05 modified 2016-12-05 plugin id 95531 published 2016-12-05 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95531 title openSUSE Security Update : pacemaker (openSUSE-2016-1376) NASL family Scientific Linux Local Security Checks NASL id SL_20161104_PACEMAKER_ON_SL7_X.NASL description The following packages have been upgraded to a newer upstream version: pacemaker (1.1.15). Security Fix(es) : - It was found that the connection between a pacemaker cluster and a pacemaker_remote node could be shut down using a new unauthenticated connection. A remote attacker could use this flaw to cause a denial of service. (CVE-2016-7797) Additional Changes : last seen 2020-03-18 modified 2016-12-16 plugin id 95914 published 2016-12-16 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95914 title Scientific Linux Security Update : pacemaker on SL7.x x86_64 (20161104) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2016-2578.NASL description An update for pacemaker is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The Pacemaker cluster resource manager is a collection of technologies working together to provide data integrity and the ability to maintain application availability in the event of a failure. The following packages have been upgraded to a newer upstream version: pacemaker (1.1.15). (BZ#1304771) Security Fix(es) : * It was found that the connection between a pacemaker cluster and a pacemaker_remote node could be shut down using a new unauthenticated connection. A remote attacker could use this flaw to cause a denial of service. (CVE-2016-7797) Red Hat would like to thank Alain Moulle (ATOS/BULL) for reporting this issue. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 94541 published 2016-11-04 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/94541 title RHEL 7 : pacemaker (RHSA-2016:2578) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-1447.NASL description This update for pacemaker fixes the following issues : - remote: Allow cluster and remote LRM API versions to diverge (bsc#1009076) - libcrmcommon: fix CVE-2016-7035 (improper IPC guarding) (bsc#1007433) - sysconfig: minor tweaks (typo, wording) - spec: more robust check for systemd being in use - spec: defines instead of some globals + error suppression - various: issues discovered via valgrind and coverity - attrd_updater: fix usage of HAVE_ATOMIC_ATTRD - crmd: cl#5185 - Record pending operations in the CIB before they are performed (bsc#1003565) - ClusterMon: fix to avoid matching other process with the same PID - mcp: improve comments for sysconfig options - remove openssl-devel and libselinux-devel as build dependencies - tools: crm_standby --version/--help should work without cluster - libpengine: only log startup-fencing warning once - pacemaker.service: do not mistakenly suggest killing fenced - libcrmcommon: report errors consistently when waiting for data on connection (bsc#986644) - remote: Correctly calculate the remaining timeouts when receiving messages (bsc#986644) - libfencing: report added node ID correctly - crm_mon: Do not call setenv with null value - pengine: Do not fence a maintenance node if it shuts down cleanly (bsc#1000743) - ping: Avoid temporary files for fping check (bsc#987348) - all: clarify licensing and copyrights - crmd: Resend the shutdown request if the DC forgets - ping: Avoid temp files in fping_check (bsc#987348) - crmd: Ensure the R_SHUTDOWN is set whenever we ask the DC to shut us down - crmd: clear remote node operation history only when it comes up - libcib,libfencing,libtransition: handle memory allocation errors without CRM_CHECK() - tools: make crm_mon XML schema handle resources with multiple active - pengine: set OCF_RESKEY_CRM_meta_notify_active_* for multistate resources - pengine: avoid null dereference in new same-node ordering option - lrmd,libcluster: ensure g_hash_table_foreach() is never passed a null table - crmd: don last seen 2020-06-05 modified 2016-12-13 plugin id 95753 published 2016-12-13 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95753 title openSUSE Security Update : pacemaker (openSUSE-2016-1447) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2016-2578.NASL description An update for pacemaker is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The Pacemaker cluster resource manager is a collection of technologies working together to provide data integrity and the ability to maintain application availability in the event of a failure. The following packages have been upgraded to a newer upstream version: pacemaker (1.1.15). (BZ#1304771) Security Fix(es) : * It was found that the connection between a pacemaker cluster and a pacemaker_remote node could be shut down using a new unauthenticated connection. A remote attacker could use this flaw to cause a denial of service. (CVE-2016-7797) Red Hat would like to thank Alain Moulle (ATOS/BULL) for reporting this issue. Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 95325 published 2016-11-28 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/95325 title CentOS 7 : pacemaker (CESA-2016:2578)
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References
- https://github.com/ClusterLabs/pacemaker/commit/5ec24a2642bd0854b884d1a9b51d12371373b410
- http://www.securityfocus.com/bid/93261
- http://www.openwall.com/lists/oss-security/2016/10/01/1
- http://rhn.redhat.com/errata/RHSA-2016-2578.html
- http://lists.opensuse.org/opensuse-updates/2016-12/msg00077.html
- http://lists.opensuse.org/opensuse-security-announce/2016-12/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2016-11/msg00038.html
- http://bugs.clusterlabs.org/show_bug.cgi?id=5269