cnvd-2020-72717
Vulnerability from cnvd
Title: Mozilla NSS拒绝服务漏洞
Description:
NSS是美国Mozilla基金会的一个底层密码学库。该库支持多种加密算法，并且Firefox浏览器的TLS实现基于该库。
NSS 3.58之前版本存在拒绝服务漏洞。该漏洞源于程序未对CCS(ChangeCipherSpec)消息进行正确处理。远程攻击者可利用该漏洞发送多个CCS消息并导致拒绝服务。
Severity: 中
Patch Name: Mozilla NSS拒绝服务漏洞的补丁
Patch Description:
NSS是美国Mozilla基金会的一个底层密码学库。该库支持多种加密算法，并且Firefox浏览器的TLS实现基于该库。
NSS 3.58之前版本存在拒绝服务漏洞。该漏洞源于程序未对CCS(ChangeCipherSpec)消息进行正确处理。远程攻击者可利用该漏洞发送多个CCS消息并导致拒绝服务。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://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.58_release_notes
Reference: https://bugzilla.redhat.com/show_bug.cgi?id=1887319
Impacted products
| Name | mozilla Network Security Services (NSS) <3.58 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-25648",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25648"
}
},
"description": "NSS\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u4e2a\u5e95\u5c42\u5bc6\u7801\u5b66\u5e93\u3002\u8be5\u5e93\u652f\u6301\u591a\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5e76\u4e14Firefox\u6d4f\u89c8\u5668\u7684TLS\u5b9e\u73b0\u57fa\u4e8e\u8be5\u5e93\u3002\n\nNSS 3.58\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u5bf9CCS(ChangeCipherSpec)\u6d88\u606f\u8fdb\u884c\u6b63\u786e\u5904\u7406\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53d1\u9001\u591a\u4e2aCCS\u6d88\u606f\u5e76\u5bfc\u81f4\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://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.58_release_notes",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2020-72717",
"openTime": "2020-12-16",
"patchDescription": "NSS\u662f\u7f8e\u56fdMozilla\u57fa\u91d1\u4f1a\u7684\u4e00\u4e2a\u5e95\u5c42\u5bc6\u7801\u5b66\u5e93\u3002\u8be5\u5e93\u652f\u6301\u591a\u79cd\u52a0\u5bc6\u7b97\u6cd5\uff0c\u5e76\u4e14Firefox\u6d4f\u89c8\u5668\u7684TLS\u5b9e\u73b0\u57fa\u4e8e\u8be5\u5e93\u3002\r\n\r\nNSS 3.58\u4e4b\u524d\u7248\u672c\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u5bf9CCS(ChangeCipherSpec)\u6d88\u606f\u8fdb\u884c\u6b63\u786e\u5904\u7406\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53d1\u9001\u591a\u4e2aCCS\u6d88\u606f\u5e76\u5bfc\u81f4\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": "Mozilla NSS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "mozilla Network Security Services (NSS) \u003c3.58"
},
"referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=1887319",
"serverity": "\u4e2d",
"submitTime": "2020-10-28",
"title": "Mozilla NSS\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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