CVE-2021-39562
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.
Swftools是一组用于处理 Adobe Flash 文件（SWF 文件）的实用程序。 swftools存在安全漏洞，该漏洞源于在gmem.cc中的grealloc()函数中存在一个空指针解引用。它允许攻击者可利用该漏洞引起拒绝服务。
Possible ATT&CK Techniques 2 AI
T1068 · Exploitation for Privilege Escalation T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-39562
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function FileStream::makeSubStream() located in Stream.cc. It allows an attacker to cause Denial of Service.
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
Swftools 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Swftools是一组用于处理 Adobe Flash 文件（SWF 文件）的实用程序。 swftools存在安全漏洞，该漏洞源于在gmem.cc中的grealloc()函数中存在一个空指针解引用。它允许攻击者可利用该漏洞引起拒绝服务。
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-2021-39562
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2021-39562 (1)
-
https://github.com/matthiaskramm/swftools/issues/98 x_refsource_MISC
Same Patch Batch · n/a · 2021-09-20 · 112 CVEs total
| CVE-2021-39545 | Sela 代码问题漏洞 | |
| CVE-2021-39553 | Swftools 代码问题漏洞 | |
| CVE-2021-39559 | Swftools 代码问题漏洞 | |
| CVE-2021-39597 | Swftools 代码问题漏洞 | |
| CVE-2021-39561 | Swftools 缓冲区错误漏洞 | |
| CVE-2021-39557 | Swftools 代码问题漏洞 | |
| CVE-2021-39596 | Swftools 代码问题漏洞 | |
| CVE-2021-39575 | swftools 代码问题漏洞 | |
| CVE-2021-39547 | Sela 代码问题漏洞 | |
| CVE-2021-39546 | Sela 缓冲区错误漏洞 | |
| CVE-2021-39598 | Swftools 代码问题漏洞 | |
| CVE-2021-39544 | Sela 缓冲区错误漏洞 | |
| CVE-2021-39552 | Sela 缓冲区错误漏洞 | |
| CVE-2021-39548 | Sela 代码问题漏洞 | |
| CVE-2021-39533 | libslax 缓冲区错误漏洞 | |
| CVE-2021-39540 | Pdftools 缓冲区错误漏洞 | |
| CVE-2021-39536 | Libxsmm 缓冲区错误漏洞 | |
| CVE-2021-32299 | pbrt 缓冲区错误漏洞 | |
| CVE-2021-39541 | Pdftools 代码问题漏洞 | |
| CVE-2021-39534 | libslax 缓冲区错误漏洞 |
Showing top 20 of 112 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-39562
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