Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
An issue was discovered in Open vSwitch (OvS) 2.7.x through 2.7.6, affecting ofproto_rule_insert__ in ofproto/ofproto.c. During bundle commit, flows that are added in a bundle are applied to ofproto in order. If a flow cannot be added (e.g., the flow action is a go-to for a group id that does not exist), OvS tries to revert back all previous flows that were successfully applied from the same bundle. This is possible since OvS maintains list of old flows that were replaced by flows from the bundle. While reinserting old flows, OvS has an assertion failure due to a check on rule state != RULE_INITIALIZED. This would work for new flows, but for an old flow the rule state is RULE_REMOVED. The assertion failure causes an OvS crash.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Open vSwitch 输入验证漏洞
Vulnerability Description
Open vSwitch（OvS）是一款以开源技术作为基础（遵循Apache2.0许可）的多层虚拟交换机产品，它通过编程扩展支持大规模网络自动化，标准的管理接口和协议等。 OvS 2.7.x版本至2.7.6版本中的ofproto/ofproto.c文件的‘ofproto_rule_insert__’函数存在安全漏洞。攻击者可利用该漏洞造成OvS崩溃（断言失败）。
CVSS Information
N/A
Vulnerability Type
N/A