cnvd-2016-00276
Vulnerability from cnvd
Title: OpenSSH ‘roaming_read’和‘roaming_write’函数拒绝服务漏洞
Description:
OpenSSH是OpenBSD计划组所维护的一套用于安全访问远程计算机的连接工具。
OpenSSH的客户端中的roaming_common.c文件中的‘roaming_read’和‘roaming_write’函数在，启用特定的代理和转发选项时，未能正确保持连接文件描述符，允许远程攻击者可通过发送多个转发请求进行拒绝服务攻击。
Severity: 中
Patch Name: OpenSSH ‘roaming_read’和‘roaming_write’函数拒绝服务漏洞的补丁
Patch Description:
OpenSSH是OpenBSD计划组所维护的一套用于安全访问远程计算机的连接工具。
OpenSSH的客户端中的roaming_common.c文件中的‘roaming_read’和‘roaming_write’函数在，启用特定的代理和转发选项时，未能正确保持连接文件描述符，允许远程攻击者可通过发送多个转发请求进行拒绝服务攻击。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description:
用户可参考如下厂商提供的安全补丁以修复该漏洞： http://www.openssh.com/txt/release-7.1p2
Reference: http://www.openssh.com/txt/release-7.1p2
Impacted products
| Name | ['Openssh OpenSSH 5.x', 'Openssh OpenSSH 6.x', 'Openssh OpenSSH 7.x(<7.1p2)'] |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2016-0778"
}
},
"description": "OpenSSH\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\r\n\r\nOpenSSH\u7684\u5ba2\u6237\u7aef\u4e2d\u7684roaming_common.c\u6587\u4ef6\u4e2d\u7684\u2018roaming_read\u2019\u548c\u2018roaming_write\u2019\u51fd\u6570\u5728\uff0c\u542f\u7528\u7279\u5b9a\u7684\u4ee3\u7406\u548c\u8f6c\u53d1\u9009\u9879\u65f6\uff0c\u672a\u80fd\u6b63\u786e\u4fdd\u6301\u8fde\u63a5\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u591a\u4e2a\u8f6c\u53d1\u8bf7\u6c42\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002",
"discovererName": "Qualys Security Advisory \u003cqsa@...lys.com\u003e",
"formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://www.openssh.com/txt/release-7.1p2",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2016-00276",
"openTime": "2016-01-19",
"patchDescription": "OpenSSH\u662fOpenBSD\u8ba1\u5212\u7ec4\u6240\u7ef4\u62a4\u7684\u4e00\u5957\u7528\u4e8e\u5b89\u5168\u8bbf\u95ee\u8fdc\u7a0b\u8ba1\u7b97\u673a\u7684\u8fde\u63a5\u5de5\u5177\u3002\r\n\r\nOpenSSH\u7684\u5ba2\u6237\u7aef\u4e2d\u7684roaming_common.c\u6587\u4ef6\u4e2d\u7684\u2018roaming_read\u2019\u548c\u2018roaming_write\u2019\u51fd\u6570\u5728\uff0c\u542f\u7528\u7279\u5b9a\u7684\u4ee3\u7406\u548c\u8f6c\u53d1\u9009\u9879\u65f6\uff0c\u672a\u80fd\u6b63\u786e\u4fdd\u6301\u8fde\u63a5\u6587\u4ef6\u63cf\u8ff0\u7b26\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u53d1\u9001\u591a\u4e2a\u8f6c\u53d1\u8bf7\u6c42\u8fdb\u884c\u62d2\u7edd\u670d\u52a1\u653b\u51fb\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
"patchName": "OpenSSH \u2018roaming_read\u2019\u548c\u2018roaming_write\u2019\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": [
"Openssh OpenSSH 5.x",
"Openssh OpenSSH 6.x",
"Openssh OpenSSH 7.x(\u003c7.1p2)"
]
},
"referenceLink": "http://www.openssh.com/txt/release-7.1p2",
"serverity": "\u4e2d",
"submitTime": "2016-01-16",
"title": "OpenSSH \u2018roaming_read\u2019\u548c\u2018roaming_write\u2019\u51fd\u6570\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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