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CVE-2021-43538

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 Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox存在竞争条件问题漏洞，该漏洞源于通过在我们的通知代码中误用竞争，攻击者可利用该漏洞可能会强制隐藏接收全屏和指针锁定访问的页面的通知，这可能会被用于欺骗攻击。此漏洞影响雷鸟< 91.4.0,Firefox ESR < 91.4.0和Firefox < 95。

AI Predicted 5.5 Difficulty: Moderate EPSS 1.16% · P65

Possible ATT&CK Techniques 1 AI

T1408
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I. Basic Information for CVE-2021-43538

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
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 Firefox 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox存在竞争条件问题漏洞，该漏洞源于通过在我们的通知代码中误用竞争，攻击者可利用该漏洞可能会强制隐藏接收全屏和指针锁定访问的页面的通知，这可能会被用于欺骗攻击。此漏洞影响雷鸟< 91.4.0,Firefox ESR < 91.4.0和Firefox < 95。
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 ~ 91.4.0 -
Mozilla Firefox ESR unspecified ~ 91.4.0 -
Mozilla Firefox unspecified ~ 95 -

II. Public POCs for CVE-2021-43538

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III. Intelligence Information for CVE-2021-43538

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Vendor Advisories for CVE-2021-43538 (8)

Mailing List Discussions for CVE-2021-43538 (2)

Same Patch Batch · Mozilla · 2021-12-08 · 27 CVEs total

CVE-2021-43534 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-43527 Mozilla Network Security Services 缓冲区错误漏洞
CVE-2021-43546 Mozilla Firefox 安全漏洞
CVE-2021-43545 Mozilla Firefox 安全漏洞
CVE-2021-43544 Mozilla Firefox 跨站脚本漏洞
CVE-2021-43543 Mozilla Firefox 跨站脚本漏洞
CVE-2021-43542 Mozilla Firefox ESR 信息泄露漏洞
CVE-2021-43541 Mozilla Firefox ESR 安全漏洞
CVE-2021-43540 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-43539 Mozilla Firefox ESR 资源管理错误漏洞
CVE-2021-43537 Mozilla Firefox ESR 代码问题漏洞
CVE-2021-43536 Mozilla Firefox ESR 信息泄露漏洞
CVE-2021-43535 Mozilla Firefox 资源管理错误漏洞
CVE-2021-38503 Mozilla Firefox 安全特征问题漏洞
CVE-2021-43533 Mozilla Firefox 安全漏洞
CVE-2021-43532 Mozilla Firefox 输入验证错误漏洞
CVE-2021-43531 Mozilla Firefox 访问控制错误漏洞
CVE-2021-43530 Mozilla Firefox 跨站脚本漏洞
CVE-2021-43528 Mozilla Thunderbird 安全特征问题漏洞
CVE-2021-38510 Mozilla Firefox 命令注入漏洞

Showing top 20 of 27 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Thunderbird
Same vendor: Mozilla

V. Comments for CVE-2021-43538

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