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CVE-2021-21034— Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability

Quick assessment

Affected
Adobe Acrobat Reader
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 Acrobat Reader是美国奥多比（Adobe）公司的一款PDF查看器。该软件用于打印，签名和注释 PDF。 Acrobat Reader DC 中存在缓冲区错误漏洞，该漏洞源于受越界读取漏洞的影响。未经验证的攻击者可以利用此漏洞在当前用户的上下文中本地提升权限

AI Predicted 6.5 Difficulty: Easy EPSS 2.48% · P83
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I. Basic Information for CVE-2021-21034

Vulnerability Information
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Vulnerability Title
Acrobat Reader DC Out-Of-Bounds Read Information Disclosure Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Out-of-bounds Read vulnerability. An unauthenticated attacker could leverage this vulnerability to locally elevate privileges 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
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Acrobat Reader DC 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Adobe Acrobat Reader是美国奥多比（Adobe）公司的一款PDF查看器。该软件用于打印，签名和注释 PDF。 Acrobat Reader DC 中存在缓冲区错误漏洞，该漏洞源于受越界读取漏洞的影响。未经验证的攻击者可以利用此漏洞在当前用户的上下文中本地提升权限
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 Acrobat Reader unspecified ~ 2020.013.20074 -

II. Public POCs for CVE-2021-21034

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III. Intelligence Information for CVE-2021-21034

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Vendor Advisories for CVE-2021-21034 (1)

Same Patch Batch · Adobe · 2021-02-11 · 48 CVEs total

CVE-2021-21017 8.8 HIGH Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Ex
CVE-2021-21045 8.2 HIGH Acrobat Reader DC Improper Installer Access Control Vulnerability Could Lead To Privilege
CVE-2021-21040 7.8 HIGH Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21038 7.8 HIGH Acrobat Reader DC Out-Of-Bounds Write Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21037 7.8 HIGH Acrobat Reader DC Path Traversal Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21036 7.8 HIGH Acrobat Reader DC Integer Overflow Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21039 7.8 HIGH Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21041 7.8 HIGH Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21057 6.6 MEDIUM Acrobat Reader DC Invalid Memory Read Due To An Uninitialized Pointer
CVE-2021-21055 6.2 MEDIUM Adobe Dreamweaver Untrusted Search Path Vulnerability Could Lead To Information Disclosure
CVE-2021-21029 4.8 MEDIUM Magento Commerce Reflected Cross-site Scripting Vulnerability Could Lead To Arbitrary Java
CVE-2021-21060 4.6 MEDIUM Acrobat Pro DC Improper File Parsing Could Lead to Information Disclosure
CVE-2021-21062 Acrobat Reader DC Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21058 Acrobat Reader DC Memory Corruption Vulnerability Could Lead to Arbitrary Code Execution
CVE-2021-21046 Acrobat Reader DC Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21054 Adobe Illustrator Out-Of-Bounds Write Vulnerability Could Lead To Remote Code Execution Vu
CVE-2021-21049 Adobe Photoshop Out-Of-Bounds Read Vulnerability Could Lead To Remote Code Execution Vulne
CVE-2021-21052 Adobe Animate Out-of-Bounds Write Vulnerability Could Lead To Arbitrary Code Execution
CVE-2021-21048 Adobe Photoshop Buffer Overflow Vulnerability Could Lead To Remote Code Execution Vulnerab
CVE-2021-21053 Adobe Illustrator Out-Of-Bounds Write Vulnerability Could Lead To Remote Code Execution

Showing top 20 of 48 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Acrobat Reader
Same vendor: Adobe
Same weakness: CWE-125

V. Comments for CVE-2021-21034

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