cnvd-2021-71451
Vulnerability from cnvd
Title: ARM mbed TLS拒绝服务漏洞
Description:
ARM mbed TLS是英国ARM公司的一款为mbed产品提供安全通讯和加密功能的产品。
ARM mbed TLS存在拒绝服务漏洞，该漏洞源于mbedtls_mpi_exp_mod执行的计算不受限制。攻击者可利用此漏洞提供过大的参数可能导致在生成Diffie-Hellman密钥对时发生拒绝服务。
Severity: 中
Patch Name: ARM mbed TLS拒绝服务漏洞的补丁
Patch Description:
ARM mbed TLS是英国ARM公司的一款为mbed产品提供安全通讯和加密功能的产品。
ARM mbed TLS存在拒绝服务漏洞，该漏洞源于mbedtls_mpi_exp_mod执行的计算不受限制。攻击者可利用此漏洞提供过大的参数可能导致在生成Diffie-Hellman密钥对时发生拒绝服务。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:
厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/ARMmbed/mbedtls/releases/tag/v2.25.0
Reference: https://nvd.nist.gov/vuln/detail/CVE-2020-36475
Impacted products
| Name | ['ARM mbed TLS <2.25.0', 'ARM mbed TLS 2.16.9 LTS', 'ARM mbed TLS 2.7.18 LTS'] |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-36475",
"cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-36475"
}
},
"description": "ARM mbed TLS\u662f\u82f1\u56fdARM\u516c\u53f8\u7684\u4e00\u6b3e\u4e3ambed\u4ea7\u54c1\u63d0\u4f9b\u5b89\u5168\u901a\u8baf\u548c\u52a0\u5bc6\u529f\u80fd\u7684\u4ea7\u54c1\u3002\n\nARM mbed TLS\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8embedtls_mpi_exp_mod\u6267\u884c\u7684\u8ba1\u7b97\u4e0d\u53d7\u9650\u5236\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u63d0\u4f9b\u8fc7\u5927\u7684\u53c2\u6570\u53ef\u80fd\u5bfc\u81f4\u5728\u751f\u6210Diffie-Hellman\u5bc6\u94a5\u5bf9\u65f6\u53d1\u751f\u62d2\u7edd\u670d\u52a1\u3002",
"formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://github.com/ARMmbed/mbedtls/releases/tag/v2.25.0",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2021-71451",
"openTime": "2021-09-16",
"patchDescription": "ARM mbed TLS\u662f\u82f1\u56fdARM\u516c\u53f8\u7684\u4e00\u6b3e\u4e3ambed\u4ea7\u54c1\u63d0\u4f9b\u5b89\u5168\u901a\u8baf\u548c\u52a0\u5bc6\u529f\u80fd\u7684\u4ea7\u54c1\u3002\r\n\r\nARM mbed TLS\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8embedtls_mpi_exp_mod\u6267\u884c\u7684\u8ba1\u7b97\u4e0d\u53d7\u9650\u5236\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u63d0\u4f9b\u8fc7\u5927\u7684\u53c2\u6570\u53ef\u80fd\u5bfc\u81f4\u5728\u751f\u6210Diffie-Hellman\u5bc6\u94a5\u5bf9\u65f6\u53d1\u751f\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": "ARM mbed TLS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": [
"ARM mbed TLS \u003c2.25.0",
"ARM mbed TLS 2.16.9 LTS",
"ARM mbed TLS 2.7.18 LTS"
]
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-36475",
"serverity": "\u4e2d",
"submitTime": "2021-08-24",
"title": "ARM mbed TLS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}
Loading…
Loading…
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.
Loading…