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Mageia: Security Advisory 2021-0495 for Apache HTTP Server Flaw

mageia
Calendar Grey October 23, 2021
Dist Mageia Esm H88
Serious vulnerabilities in Apache Tomcat versions necessitate urgent updates to avert unauthorized intrusions and potential service disruptions.
A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the ...

Summary

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. (CVE-2021-30640)
Apache Tomcat 10.0.0-M1 to 10.0.6, 9.0.0.M1 to 9.0.46 and 8.5.0 to 8.5.66 did not correctly parse the HTTP transfer-encoding request header in some circumstances leading to the possibility to request smuggling when used with a reverse proxy. Specifically: - Tomcat incorrectly ignored the transfer encoding header if the client declared it would only accept an HTTP/1.0 response; - Tomcat honoured the identify encoding; and - Tomcat did not ensure that, if present, the chunked encoding was the final encoding. (CVE-2021-33037)
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...

Read the Full Advisory

References

- https://bugs.mageia.org/show_bug.cgi?id=29351

- https://lists.debian.org/debian-security-announce/2021/msg00135.html

- https://tomcat.apache.org/security-9.html

- https://tomcat.apache.org/security-9.html

- https://www.openwall.com/lists/oss-security/2021/09/15/6

- https://tomcat.apache.org/security-9.html

- https://www.openwall.com/lists/oss-security/2021/10/14/1

- https://lists.debian.org/debian-security-announce/2021/msg00171.html

- https://www.cve.org/CVERecord?id=CVE-2021-30640

- https://www.cve.org/CVERecord?id=CVE-2021-33037

- https://www.cve.org/CVERecord?id=CVE-2021-41079

- https://www.cve.org/CVERecord?id=CVE-2021-42340

Resolution

SRPMS

- 8/core/tomcat-9.0.54-1.mga8

Severity
critical
Lowest
Low
Medium
High
Critical

Publication date: 23 Oct 2021
URL: https://advisories.mageia.org/MGASA-2021-0485.html
Type: security
CVE: CVE-2021-30640, CVE-2021-33037, CVE-2021-41079, CVE-2021-42340

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