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CVE-2020-12403

Quick assessment

Affected
n/a nss
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mozilla Network Security Services（NSS）是美国Mozilla基金会的一个函数库（网络安全服务库）。该产品可跨平台提供SSL、S/MIME和其他Internet安全标准支持。 Mozilla Network Security Services 3.55之前版本中存在缓冲区错误漏洞。攻击者可利用该漏洞获取敏感信息。

AI Predicted 5.9 Difficulty: Moderate EPSS 1.54% · P74

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-12403

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the way CHACHA20-POLY1305 was implemented in NSS in versions before 3.55. When using multi-part Chacha20, it could cause out-of-bounds reads. This issue was fixed by explicitly disabling multi-part ChaCha20 (which was not functioning correctly) and strictly enforcing tag length. The highest threat from this vulnerability is to confidentiality and system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Network Security Services 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Network Security Services（NSS）是美国Mozilla基金会的一个函数库（网络安全服务库）。该产品可跨平台提供SSL、S/MIME和其他Internet安全标准支持。 Mozilla Network Security Services 3.55之前版本中存在缓冲区错误漏洞。攻击者可利用该漏洞获取敏感信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- nss nss 3.55 -

II. Public POCs for CVE-2020-12403

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2020-12403

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Vendor Advisories for CVE-2020-12403 (2)

Mailing List Discussions for CVE-2020-12403 (1)

Other References for CVE-2020-12403 (1)

Same Patch Batch · n/a · 2021-05-27 · 74 CVEs total

CVE-2020-22025 FFmpeg 缓冲区错误漏洞
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CVE-2020-10688 Red Hat Resteasy 跨站脚本漏洞
CVE-2020-22033 FFmpeg 缓冲区错误漏洞
CVE-2020-22032 FFmpeg 缓冲区错误漏洞
CVE-2020-22016 FFmpeg 缓冲区错误漏洞
CVE-2020-22017 FFmpeg 缓冲区错误漏洞
CVE-2021-33394 Devellion Cubecart 授权问题漏洞
CVE-2020-22022 FFmpeg 缓冲区错误漏洞
CVE-2020-22023 FFmpeg 缓冲区错误漏洞
CVE-2020-10697 Red Hat Ansible 安全漏洞
CVE-2020-22027 FFmpeg 缓冲区错误漏洞
CVE-2020-22030 FFmpeg 缓冲区错误漏洞
CVE-2020-22029 FFmpeg 缓冲区错误漏洞
CVE-2020-22031 FFmpeg 缓冲区错误漏洞
CVE-2021-27490 Siemens Solid Edge 缓冲区错误漏洞
CVE-2021-27492 Siemens Solid Edge 代码问题漏洞
CVE-2021-27488 Siemens Solid Edge 缓冲区错误漏洞
CVE-2021-27496 Siemens Solid Edge 安全漏洞
CVE-2021-27494 Siemens Solid Edge 安全漏洞

Showing top 20 of 74 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: nss
Same vendor: n/a
Same weakness: CWE-125

V. Comments for CVE-2020-12403

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