Описание
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | released | 2.9.2-0ubuntu0.18.04.3 |
| cosmic | not-affected | 2.10.0-0ubuntu2 |
| devel | not-affected | 2.10.0-0ubuntu2 |
| esm-infra-legacy/trusty | DNE | trusty/esm was DNE [trusty was not-affected [code not present]] |
| esm-infra/bionic | released | 2.9.2-0ubuntu0.18.04.3 |
| esm-infra/xenial | released | 2.5.5-0ubuntu0.16.04.2 |
| precise/esm | DNE | |
| trusty | not-affected | code not present |
| trusty/esm | DNE | trusty was not-affected [code not present] |
| upstream | needs-triage |
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4 Medium
CVSS2
4.3 Medium
CVSS3
Связанные уязвимости
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, aff ...
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting parse_group_prop_ntr_selection_method in lib/ofp-util.c. When decoding a group mod, it validates the group type and command after the whole group mod has been decoded. The OF1.5 decoder, however, tries to use the type and command earlier, when it might still be invalid. This causes an assertion failure (via OVS_NOT_REACHED). ovs-vswitchd does not enable support for OpenFlow 1.5 by default.
Уязвимость метода parse_group_prop_ntr_selection_method программного многоуровневого коммутатора Open vSwitch, позволяющая нарушителю вызвать отказ в обслуживании
4 Medium
CVSS2
4.3 Medium
CVSS3