CVE-2017-14970

In lib/ofp-util.c in Open vSwitch (OvS) before 2.8.1, there are multiple memory leaks while parsing malformed OpenFlow group mod messages. NOTE: the vendor disputes the relevance of this report, stating "it can only be triggered by an OpenFlow controller, but OpenFlow controllers have much more direct and powerful ways to force Open vSwitch to allocate memory, such as by inserting flows into the flow table."

This update for openvswitch fixes the following issues:

Security issue fixed:

• CVE-2017-14970: Add upstream patches to fix memory leaks (bsc#1061310).

Bug fixes:

• Fix rpmlint warnings (bsc#1057357).
• Add missing post/postun scriptlets for the ovn-common sub-package (bsc#1054094).

This update for openvswitch fixes the following issues:

• CVE-2017-9263: While parsing an OpenFlow role status message, there is a call to the abort() functio for undefined role status reasons in the function ofp_print_role_status_message in lib/ofp-print.c that may be leveraged toward a remote DoS attack by a malicious switch. (bsc#1041470)
• CVE-2017-9265: Buffer over-read while parsing the group mod OpenFlow message sent from the controller in lib/ofp-util.c in the function ofputil_pull_ofp15_group_mod.(bsc#1041447)
• CVE-2017-9214: While parsing an OFPT_QUEUE_GET_CONFIG_REPLY type OFP 1.0 message, there is a buffer over-read that is caused by an unsigned integer underflow in the function ofputil_pull_queue_get_config_reply10 in lib/ofp-util.c. (bsc#1040543)
• CVE-2017-14970: In lib/ofp-util.c, there are multiple memory leaks while parsing malformed OpenFlow group mod messages.(bsc#1061310)

This update for openvswitch fixes the following issues:

• CVE-2017-9263: While parsing an OpenFlow role status message, there is a call to the abort() functio for undefined role status reasons in the function ofp_print_role_status_message in lib/ofp-print.c that may be leveraged toward a remote DoS attack by a malicious switch. (bsc#1041470)

• CVE-2017-9265: Buffer over-read while parsing the group mod OpenFlow message sent from the controller in lib/ofp-util.c in the function ofputil_pull_ofp15_group_mod.(bsc#1041447)

• CVE-2017-9214: While parsing an OFPT_QUEUE_GET_CONFIG_REPLY type OFP 1.0 message, there is a buffer over-read that is caused by an unsigned integer underflow in the function ofputil_pull_queue_get_config_reply10 in lib/ofp-util.c. (bsc#1040543)

• CVE-2017-14970: In lib/ofp-util.c, there are multiple memory leaks while parsing malformed OpenFlow group mod messages.(bsc#1061310)

• Do not stop the systemd service on package removals as this can break networking. Moreover, this allows us to easily update to more recent openvswitch releases without connectivity problems (bsc#1050896)