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CVE-2020-12387

Quick assessment

Affected
Mozilla Firefox ESR
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 Thunderbird是美国Mozilla基金会的一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 Mozilla Thunderbird 68.8.0之前版本、Firefox ESR 68.8之前版本和Firefox 76之前版本中存在资源管理错误漏洞。攻击者可借助特制的网站利用该漏洞在受影响系统上执行任意代码或造成拒绝服务。

AI Predicted 7.8 Difficulty: Hard EPSS 1.40% · P70

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2020-12387

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Thunderbird 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Thunderbird是美国Mozilla基金会的一套从Mozilla Application Suite独立出来的电子邮件客户端软件。该软件支持IMAP、POP邮件协议以及HTML邮件格式。 Mozilla Thunderbird 68.8.0之前版本、Firefox ESR 68.8之前版本和Firefox 76之前版本中存在资源管理错误漏洞。攻击者可借助特制的网站利用该漏洞在受影响系统上执行任意代码或造成拒绝服务。
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
Mozilla Firefox ESR unspecified ~ 68.8 -
Mozilla Firefox unspecified ~ 76 -
Mozilla Thunderbird unspecified ~ 68.8.0 -

II. Public POCs for CVE-2020-12387

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III. Intelligence Information for CVE-2020-12387

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Vendor Advisories for CVE-2020-12387 (6)

Same Patch Batch · Mozilla · 2020-05-26 · 12 CVEs total

CVE-2020-12396 Mozilla Firefox 缓冲区错误漏洞
CVE-2020-12395 Mozilla Firefox和Firefox ESR 缓冲区错误漏洞
CVE-2020-12394 Mozilla Firefox 输入验证错误漏洞
CVE-2020-12393 Mozilla Thunderbird、Firefox ESR和Firefox 注入漏洞
CVE-2020-12392 Mozilla Thunderbird 路径遍历漏洞
CVE-2020-12391 Mozilla Firefox 输入验证错误漏洞
CVE-2020-12390 Mozilla Firefox 代码问题漏洞
CVE-2020-12389 Mozilla Firefox和Firefox ESR 输入验证错误漏洞
CVE-2020-12388 Mozilla Firefox和Firefox ESR 输入验证错误漏洞
CVE-2020-6831 Mozilla Thunderbird、Firefox ESR和Firefox 缓冲区错误漏洞
CVE-2020-6830 Mozilla Firefox 信息泄露漏洞

IV. Related Vulnerabilities

Same product: Firefox ESR
Same vendor: Mozilla

V. Comments for CVE-2020-12387

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