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CVE-2021-21811

Quick assessment

Affected
n/a AT&T
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.

AT&T Labs Xmill是美国AT&T Labs实验室的一种用于高效压缩 XML 数据的新工具。 AT&T Labs Xmill存在数字错误漏洞，该漏洞源于解析CreateLabelOrAttrib功能存在内存破坏漏洞。特殊制作的XML文件可能导致堆缓冲区溢出。攻击者可利用该漏洞可以提供恶意文件来触发此漏洞。

AI Predicted 8.8 Difficulty: Moderate EPSS 1.14% · P65

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-21811

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A memory corruption vulnerability exists in the XML-parsing CreateLabelOrAttrib functionality of AT&T Labs’ Xmill 0.7. A specially crafted XML file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
整数下溢(超界折返)
Source: CVE Program / CVE List V5
Vulnerability Title
AT&T Labs Xmill 数字错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AT&T Labs Xmill是美国AT&T Labs实验室的一种用于高效压缩 XML 数据的新工具。 AT&T Labs Xmill存在数字错误漏洞，该漏洞源于解析CreateLabelOrAttrib功能存在内存破坏漏洞。特殊制作的XML文件可能导致堆缓冲区溢出。攻击者可利用该漏洞可以提供恶意文件来触发此漏洞。
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
- AT&T AT&T Labs Xmill 0.7 -

II. Public POCs for CVE-2021-21811

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III. Intelligence Information for CVE-2021-21811

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Other References for CVE-2021-21811 (1)

Same Patch Batch · n/a · 2021-08-31 · 33 CVEs total

CVE-2021-22684 Samsung Galaxy Gear Series Tizen 输入验证错误漏洞
CVE-2021-40330 Git 处理逻辑错误漏洞
CVE-2021-36981 SerNet verinice 代码问题漏洞
CVE-2021-3634 Libssh 缓冲区错误漏洞
CVE-2021-27556 Nature Easy Soft Network Technology ZenTao 操作系统命令注入漏洞
CVE-2021-27557 Nature Easy Soft Network Technology ZenTao 跨站请求伪造漏洞
CVE-2021-27558 Nature Easy Soft Network Technology ZenTao 跨站脚本漏洞
CVE-2021-36356 Kramer Electronics VIAware 代码问题漏洞
CVE-2020-13639 Outsystems OutSystems Platform 跨站脚本漏洞
CVE-2021-38145 Form Tools SQL注入漏洞
CVE-2021-38143 Form Tools 跨站脚本漏洞
CVE-2021-38144 Form Tools 跨站脚本漏洞
CVE-2020-19046 S-CMS 跨站脚本漏洞
CVE-2020-19047 iWebShop 跨站请求伪造漏洞
CVE-2020-19048 MyBB 跨站脚本漏洞
CVE-2020-19049 MyBB 跨站脚本漏洞
CVE-2020-20495 bludit 安全漏洞
CVE-2021-22944 Ubiquiti Networks UniFi Protect 访问控制错误漏洞
CVE-2021-22943 Ubiquiti Networks UniFi Protect 授权问题漏洞
CVE-2021-22929 Brave 日志信息泄露漏洞

Showing top 20 of 33 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: AT&T
Same vendor: n/a
Same weakness: CWE-191

V. Comments for CVE-2021-21811

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