cnvd-2021-89691
Vulnerability from cnvd
Title: BusyBox代码问题漏洞
Description:
BusyBox是乌克兰Denis Vlasenko个人开发者的一套包含了多个linux命令和工具的应用程序。
Busybox中存在代码问题漏洞,该漏洞源于产品的man applet对某些输入数据未进行合适的处理。攻击者可通过提供section的同时不提page参数导致NULL指针解引用引发拒绝服务。
Severity: 低
Patch Name: BusyBox代码问题漏洞的补丁
Patch Description:
BusyBox是乌克兰Denis Vlasenko个人开发者的一套包含了多个linux命令和工具的应用程序。
Busybox中存在代码问题漏洞,该漏洞源于产品的man applet对某些输入数据未进行合适的处理。攻击者可通过提供section的同时不提page参数导致NULL指针解引用引发拒绝服务。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:
目前厂商已发布升级补丁以修复漏洞,补丁获取链接: https://busybox.net/
Reference: https://nvd.nist.gov/vuln/detail/CVE-2021-42373
Impacted products
Name | ['BusyBox BusyBox 1.33.1', 'BusyBox BusyBox 1.33.0'] |
---|
{ "cves": { "cve": { "cveNumber": "CVE-2021-42373" } }, "description": "BusyBox\u662f\u4e4c\u514b\u5170Denis Vlasenko\u4e2a\u4eba\u5f00\u53d1\u8005\u7684\u4e00\u5957\u5305\u542b\u4e86\u591a\u4e2alinux\u547d\u4ee4\u548c\u5de5\u5177\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\n\nBusybox\u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u7684man applet\u5bf9\u67d0\u4e9b\u8f93\u5165\u6570\u636e\u672a\u8fdb\u884c\u5408\u9002\u7684\u5904\u7406\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u63d0\u4f9bsection\u7684\u540c\u65f6\u4e0d\u63d0page\u53c2\u6570\u5bfc\u81f4NULL\u6307\u9488\u89e3\u5f15\u7528\u5f15\u53d1\u62d2\u7edd\u670d\u52a1\u3002", "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://busybox.net/", "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e", "number": "CNVD-2021-89691", "openTime": "2021-11-22", "patchDescription": "BusyBox\u662f\u4e4c\u514b\u5170Denis Vlasenko\u4e2a\u4eba\u5f00\u53d1\u8005\u7684\u4e00\u5957\u5305\u542b\u4e86\u591a\u4e2alinux\u547d\u4ee4\u548c\u5de5\u5177\u7684\u5e94\u7528\u7a0b\u5e8f\u3002\r\n\r\nBusybox\u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u4ea7\u54c1\u7684man applet\u5bf9\u67d0\u4e9b\u8f93\u5165\u6570\u636e\u672a\u8fdb\u884c\u5408\u9002\u7684\u5904\u7406\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u63d0\u4f9bsection\u7684\u540c\u65f6\u4e0d\u63d0page\u53c2\u6570\u5bfc\u81f4NULL\u6307\u9488\u89e3\u5f15\u7528\u5f15\u53d1\u62d2\u7edd\u670d\u52a1\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": "BusyBox\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01", "products": { "product": [ "BusyBox BusyBox 1.33.1", "BusyBox BusyBox 1.33.0" ] }, "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-42373", "serverity": "\u4f4e", "submitTime": "2021-11-12", "title": "BusyBox\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e" }
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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.
- 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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