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CVE-2021-29970

Quick assessment

Affected
Mozilla Thunderbird
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 存在资源管理错误漏洞，该漏洞源于在处理HTML内容时可访问性特性中出现了事后使用错误。攻击者可利用该漏洞跟踪受害者，打开一个专门设计的网页，触发一个事后使用错误，并在系统上执行任意代码。

AI Predicted 7.8 Difficulty: Moderate EPSS 1.43% · P71

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-29970

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A malicious webpage could have triggered a use-after-free, memory corruption, and a potentially exploitable crash. *This bug could only be triggered when accessibility was enabled.*. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90.
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 存在资源管理错误漏洞，该漏洞源于在处理HTML内容时可访问性特性中出现了事后使用错误。攻击者可利用该漏洞跟踪受害者，打开一个专门设计的网页，触发一个事后使用错误，并在系统上执行任意代码。
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 Thunderbird unspecified ~ 78.12 -
Mozilla Firefox ESR unspecified ~ 78.12 -
Mozilla Firefox unspecified ~ 90 -

II. Public POCs for CVE-2021-29970

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III. Intelligence Information for CVE-2021-29970

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Vendor Advisories for CVE-2021-29970 (6)

Same Patch Batch · Mozilla · 2021-08-05 · 10 CVEs total

CVE-2021-29978 Mozilla VPN 安全特征问题漏洞
CVE-2021-29977 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-29976 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-29975 Mozilla Firefox 安全漏洞
CVE-2021-29974 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-29973 Mozilla Firefox 安全漏洞
CVE-2021-29972 Mozilla Firefox 资源管理错误漏洞
CVE-2021-29971 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-29969 Mozilla Thunderbird 命令注入漏洞

IV. Related Vulnerabilities

Same product: Thunderbird
Same vendor: Mozilla

V. Comments for CVE-2021-29970

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