CVE-2021-39863— Adobe Acrobat和Adobe Reader 安全漏洞
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I. CVE-2021-39863の基本情報
脆弱性情報
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脆弱性タイトル
Adobe Acrobat Reader DC Heap-based Buffer Overflow Vulnerability Could Lead To Arbitrary Code Execution
ソース: NVD (National Vulnerability Database)
脆弱性説明
Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Buffer Overflow vulnerability when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to achieve 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.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
堆缓冲区溢出
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Adobe Acrobat和Adobe Reader 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Adobe Acrobat和Adobe Reader都是美国奥多比（Adobe）公司的产品。Adobe Acrobat是一套PDF文件编辑和转换工具。Adobe Reader是一套PDF文档阅读软件。 Adobe Acrobat 和 Reader存在安全漏洞，该漏洞源于处理 PDF 文件时的边界错误。远程攻击者可以欺骗受害者打开特制的 PDF 文件，触发基于堆的缓冲区溢出并在目标系统上执行任意代码。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| Adobe | Acrobat Reader | unspecified ~ DC 2021 July | - |
II. CVE-2021-39863の公開POC
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- https://helpx.adobe.com/security/products/acrobat/apsb21-55.htmlx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-39863
Same Patch Batch · Adobe · 2021-09-29 · 41 CVEs total
| CVE-2021-39831 | 7.8 HIGH | Adobe FrameMaker PDF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability |
| CVE-2021-40715 | 7.8 HIGH | Adobe Premiere Pro 2021 EXR File Parsing Leads to Memory Corruption |
| CVE-2021-39843 | 7.8 HIGH | Adobe Acrobat Reader XObject Out-of-Bound Write Vulnerability |
| CVE-2021-40708 | 7.3 HIGH | Adobe Genuine Service Installer Privilege Escalation Vulnerability |
| CVE-2021-39855 | 6.5 MEDIUM | Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via src Parameter |
| CVE-2021-39856 | 6.5 MEDIUM | Adobe Acrobat Reader DC NTLMv2 SSO Information Disclosure via LoadFile |
| CVE-2021-39846 | 6.1 MEDIUM | Adobe Acrobat Reader /Parent Property Recursive Stack Overflow |
| CVE-2021-39845 | 6.1 MEDIUM | Adobe Acrobat Reader Page Tree Node Recursive Stack Overflow |
| CVE-2021-39851 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39852 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39850 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39849 | 5.5 MEDIUM | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi |
| CVE-2021-39860 | 5.5 MEDIUM | Adobe Acrobat Reader DC Search Plugin Null Pointer Dereference |
| CVE-2021-39861 | 5.5 MEDIUM | Adobe Acrobat Reader DC Catalog Plugin Out-of-Bounds Read Bug |
| CVE-2021-39844 | 3.3 LOW | Adobe Acrobat Reader CalRGB Out-of-Bounds Read Vulnerability |
| CVE-2021-39836 | Adobe Acrobat Reader DC AcroForm buttonGetIcon Use-After-Free Remote Code Execution Vulner | |
| CVE-2021-39835 | Adobe FrameMaker PDF File Parsing Use-After-Free Information Disclosure Vulnerability | |
| CVE-2021-39837 | Adobe Acrobat Reader DC AcroForm deleteItemAt Use-After-Free Remote Code Execution Vulnera | |
| CVE-2021-39853 | Adobe Acrobat Reader DC Null Pointer Dereference Could Lead To Application Denial-of-Servi | |
| CVE-2021-39839 | Adobe Acrobat Reader DC AcroForm getItemAt Use-After-Free Remote Code Execution Vulnerabil |
Showing 20 of 41 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Acrobat Reader
- CVE-2026-34622
Acrobat Reader | Improperly Controlled Modification of Objec - CVE-2026-34626
Acrobat Reader | Improperly Controlled Modification of Objec - CVE-2026-34621
Acrobat Reader | Improperly Controlled Modification of Objec - CVE-2026-27221
Acrobat Reader | Improper Certificate Validation (CWE-295) - CVE-2026-27278
Acrobat Reader | Use After Free (CWE-416)
同じベンダー: Adobe
- CVE-2026-34632
Photoshop Installer | CWE-427: Uncontrolled Search Path Elem - CVE-2026-27297
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (C - CVE-2026-27300
Adobe Framemaker | Access of Uninitialized Pointer (CWE-824) - CVE-2026-27296
Adobe Framemaker | Integer Underflow (Wrap or Wraparound) (C - CVE-2026-27290
Adobe Framemaker | Untrusted Search Path (CWE-426)
同じ弱点: CWE-122
- CVE-2026-8261
Squirrel sqobject.cpp Load heap-based overflow - CVE-2026-8213
OSGeo gdal Grid File GDapi.c GDSDfldsrch heap-based overflow - CVE-2026-8212
OSGeo gdal SWapi.c SWSDfldsrch heap-based overflow - CVE-2026-42309
Pillow: Heap buffer overflow with nested list coordinates - CVE-2026-45130
Vim: Heap Buffer Overflow in spell file loading
V. CVE-2021-39863へのコメント
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