cnvd-2016-12204
Vulnerability from cnvd
Title
Linux Kernel本地权限提升漏洞(CNVD-2016-12204)
Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。
Linux kernel 4.0之前版本中的arch/arm64/kernel/sys.c文件存在安全漏洞。本地攻击者可借助写入权限利用该漏洞绕过‘strict page permissions’保护机制,修改系统调用表格,并获取权限。
Severity
中
VLAI Severity ?
Patch Name
Linux Kernel本地权限提升漏洞(CNVD-2016-12204)的补丁
Patch Description
Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。
Linux kernel 4.0之前版本中的arch/arm64/kernel/sys.c文件存在安全漏洞。本地攻击者可借助写入权限利用该漏洞绕过‘strict page permissions’保护机制,修改系统调用表格,并获取权限。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
目前厂商已经发布了升级补丁以修复此安全问题,补丁获取链接: http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c623b33b4e9599c6ac5076f7db7369eb9869aa04
Reference
http://www.securityfocus.com/bid/94680
Impacted products
Name | Linux Kernel <4.0 |
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{ "bids": { "bid": { "bidNumber": "94680" } }, "cves": { "cve": { "cveNumber": "CVE-2015-8967" } }, "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684arch/arm64/kernel/sys.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5199\u5165\u6743\u9650\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u2018strict page permissions\u2019\u4fdd\u62a4\u673a\u5236\uff0c\u4fee\u6539\u7cfb\u7edf\u8c03\u7528\u8868\u683c\uff0c\u5e76\u83b7\u53d6\u6743\u9650\u3002", "discovererName": "Linux", "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c623b33b4e9599c6ac5076f7db7369eb9869aa04", "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e", "number": "CNVD-2016-12204", "openTime": "2016-12-13", "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.0\u4e4b\u524d\u7248\u672c\u4e2d\u7684arch/arm64/kernel/sys.c\u6587\u4ef6\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5199\u5165\u6743\u9650\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u2018strict page permissions\u2019\u4fdd\u62a4\u673a\u5236\uff0c\u4fee\u6539\u7cfb\u7edf\u8c03\u7528\u8868\u683c\uff0c\u5e76\u83b7\u53d6\u6743\u9650\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": "Linux Kernel\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2016-12204\uff09\u7684\u8865\u4e01", "products": { "product": "Linux Kernel \u003c4.0" }, "referenceLink": "http://www.securityfocus.com/bid/94680", "serverity": "\u4e2d", "submitTime": "2016-12-08", "title": "Linux Kernel\u672c\u5730\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2016-12204\uff09" }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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