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CVE-2021-37220

Quick assessment

Affected
n/a n/a
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.

Artifex Software MuPDF是美国Artifex Software公司的一款免费的、轻量级的PDF阅读器。 MuPDF 中存在缓冲区错误漏洞，该漏洞源于产品缓冲中的颜色转换器没有正确考虑哈希表最大键的大小，攻击者可通过该漏洞导致跨界写操作。 以下产品及版本受到影响：MuPDF 1.18.1 之前版本。

AI Predicted 7.8 Difficulty: Easy EPSS 1.33% · P70

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-37220

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
MuPDF through 1.18.1 has an out-of-bounds write because the cached color converter does not properly consider the maximum key size of a hash table. This can, for example, be seen with crafted "mutool draw" input.
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
MuPDF 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Artifex Software MuPDF是美国Artifex Software公司的一款免费的、轻量级的PDF阅读器。 MuPDF 中存在缓冲区错误漏洞，该漏洞源于产品缓冲中的颜色转换器没有正确考虑哈希表最大键的大小，攻击者可通过该漏洞导致跨界写操作。 以下产品及版本受到影响：MuPDF 1.18.1 之前版本。
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
- n/a n/a -

II. Public POCs for CVE-2021-37220

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-37220

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Mailing List Discussions for CVE-2021-37220 (1)

Other References for CVE-2021-37220 (2)

Same Patch Batch · n/a · 2021-07-21 · 67 CVEs total

CVE-2021-23409 7.5 HIGH Denial of Service (DoS)
CVE-2021-23411 5.4 MEDIUM Cross-site Scripting (XSS)
CVE-2021-23408 5.4 MEDIUM Prototype Pollution
CVE-2020-19497 MAT File I/O Library 输入验证错误漏洞
CVE-2020-20219 MikroTik RouterOS 缓冲区错误漏洞
CVE-2020-19492 Sam2p 安全漏洞
CVE-2020-19469 Modesty Pdf2json 缓冲区错误漏洞
CVE-2020-19468 Modesty Pdf2json 代码问题漏洞
CVE-2020-19467 Modesty Pdf2json 资源管理错误漏洞
CVE-2020-19466 PDF2JSON 缓冲区错误漏洞
CVE-2020-19465 Modesty Pdf2json 缓冲区错误漏洞
CVE-2020-19464 PDF2JSON 缓冲区错误漏洞
CVE-2020-19463 Modesty Pdf2json 缓冲区错误漏洞
CVE-2020-22150 Piwigo 跨站脚本漏洞
CVE-2020-22148 Piwigo 跨站脚本漏洞
CVE-2020-19609 artifex mupdf 缓冲区错误漏洞
CVE-2020-20221 MikroTik RouterOS 资源管理错误漏洞
CVE-2021-37155 Wolfssl 安全漏洞
CVE-2020-20262 MikroTik RouterOS 代码问题漏洞
CVE-2021-34816 Etherpad 参数注入漏洞

Showing top 20 of 67 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-37220

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