CVE-2018-17205
Quick assessment
Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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）。
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I. Basic Information for CVE-2018-17205
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Open vSwitch 输入验证漏洞
Source: CNNVD (China National Vulnerability Database)
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）。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
|
II. Public POCs for CVE-2018-17205
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2018-17205 (1)
Vendor Advisories for CVE-2018-17205 (3)
Same Patch Batch · n/a · 2018-09-19 · 17 CVEs total
| CVE-2018-17229 | Exiv2 缓冲区错误漏洞 | |
| CVE-2018-17230 | Exiv2 缓冲区错误漏洞 | |
| CVE-2018-17231 | Telegram Desktop 输入验证错误漏洞 | |
| CVE-2018-17228 | nmap4j 安全漏洞 | |
| CVE-2018-17208 | Belkin Intermational Linksys Velop 安全漏洞 | |
| CVE-2018-17204 | Open vSwitch 输入验证错误漏洞 | |
| CVE-2018-17206 | Open vSwitch 缓冲区错误漏洞 | |
| CVE-2018-17207 | Snap Creek Duplicator 安全漏洞 | |
| CVE-2018-16607 | Open-AudIT 跨站脚本漏洞 | |
| CVE-2018-16785 | DedeCMS 安全漏洞 | |
| CVE-2018-17183 | Artifex Ghostscript 输入验证错误漏洞 | |
| CVE-2018-11889 | Android WLAN 缓冲区错误漏洞 | |
| CVE-2018-11893 | Android WLAN 缓冲区错误漏洞 | |
| CVE-2018-5905 | Android Qualcomm Diag驱动程序权限许可和访问控制漏洞 | |
| CVE-2018-17182 | Linux kernel 安全漏洞 | |
| CVE-2018-17144 | Bitcoin Core和Bitcoin Knots 输入验证错误漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2018-17205
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