CVE-2021-41079— Apache Tomcat DoS with unexpected TLS packet
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I. Basic Information for CVE-2021-41079
Vulnerability Information
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Vulnerability Title
Apache Tomcat DoS with unexpected TLS packet
Source: NVD (National Vulnerability Database)
Vulnerability Description
Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Apache Tomcat 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Tomcat是美国阿帕奇（Apache）基金会的一款轻量级Web应用服务器。该程序实现了对Servlet和JavaServer Page（JSP）的支持。 Apache Tomcat 存在输入验证错误漏洞，该漏洞源于程序处理某些 TLS 数据包时存在无限循环，远程攻击者可以向应用程序发送特制的数据包，消耗所有可用的系统资源并导致拒绝服务条件。
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 |
|---|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | Apache Tomcat 8.5 8.5.0 to 8.5.63 | - |
II. Public POCs for CVE-2021-41079
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|---|
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- https://security.netapp.com/advisory/ntap-20211008-0005/x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-41079
Same Patch Batch · Apache Software Foundation · 2021-09-16 · 6 CVEs total
| CVE-2021-40438 | mod_proxy SSRF | |
| CVE-2021-39275 | ap_escape_quotes buffer overflow | |
| CVE-2021-39239 | XML External Entity (XXE) vulnerability | |
| CVE-2021-36160 | mod_proxy_uwsgi out of bound read | |
| CVE-2021-34798 | NULL pointer dereference in httpd core |
IV. Related Vulnerabilities
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Same vendor: Apache Software Foundation
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Same weakness: CWE-20
V. Comments for CVE-2021-41079
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