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CVE-2021-42721— Adobe Bridge Use After Free could lead to Arbitrary code execution

Quick assessment

Affected
Adobe Bridge
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.

Adobe Media Encoder是美国奥多比（Adobe）公司的一款音、视频编码应用程序。 Adobe Media Encoder 15.4 及更早版本存在资源管理错误漏洞，该漏洞源于软件会受到内存破坏漏洞的影响。未经身份验证的攻击者可利用该漏洞在当前用户的上下文中实现任意代码执行。利用此问题需要用户交互，因为受害者必须打开恶意M4A文件。

CVSS 7.8 · High EPSS 3.66% · P89
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I. Basic Information for CVE-2021-42721

Vulnerability Information
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Vulnerability Title
Adobe Bridge Use After Free could lead to Arbitrary code execution
Source: CVE Program / CVE List V5
Vulnerability Description
Acrobat Bridge versions 11.1.1 and earlier are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Adobe Media Encoder 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Media Encoder是美国奥多比（Adobe）公司的一款音、视频编码应用程序。 Adobe Media Encoder 15.4 及更早版本存在资源管理错误漏洞，该漏洞源于软件会受到内存破坏漏洞的影响。未经身份验证的攻击者可利用该漏洞在当前用户的上下文中实现任意代码执行。利用此问题需要用户交互，因为受害者必须打开恶意M4A文件。
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
Adobe Bridge unspecified ~ 11.1.1 -

II. Public POCs for CVE-2021-42721

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III. Intelligence Information for CVE-2021-42721

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Vendor Advisories for CVE-2021-42721 (1)

Same Patch Batch · Adobe · 2021-11-16 · 8 CVEs total

CVE-2021-42726 7.8 HIGH Adobe Bridge Memory Corruption could lead to Arbitrary code execution
CVE-2021-43013 7.8 HIGH Adobe Media Encoder memory corruption vulnerability could lead to remote code execution
CVE-2021-42723 7.8 HIGH Adobe Bridge Out-of-bounds read could lead to Arbitrary Code Execution
CVE-2021-42731 7.8 HIGH Adobe Indesign Buffer Overflow Could Lead to Remote Code Execution
CVE-2021-42725 7.8 HIGH Adobe Bridge Memory Corruption could lead to Arbitrary code execution
CVE-2021-43012 7.8 HIGH Adobe Prelude M4A file memory corruption vulnerability could lead to remote code execution
CVE-2021-43011 7.8 HIGH Adobe Prelude M4A file memory corruption vulnerability could lead to remote code execution

IV. Related Vulnerabilities

Same product: Bridge
Same vendor: Adobe
Same weakness: CWE-416

V. Comments for CVE-2021-42721

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