5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.123 Low
EPSS
Percentile
95.3%
Package : tomcat8
Version : 8.5.54-0+deb9u7
CVE ID : CVE-2021-30640 CVE-2021-33037
Debian Bug : 991046 991046
Several security vulnerabilities have been discovered in the Tomcat
servlet and JSP engine.
CVE-2021-30640
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-2021-33037
Apache Tomcat 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.
For Debian 9 stretch, these problems have been fixed in version
8.5.54-0+deb9u7.
We recommend that you upgrade your tomcat8 packages.
For the detailed security status of tomcat8 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/tomcat8
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
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OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 10 | all | libtomcat9-embed-java | < 9.0.31-1~deb10u5 | libtomcat9-embed-java_9.0.31-1~deb10u5_all.deb |
Debian | 9 | all | libservlet3.1-java-doc | < 8.5.54-0+deb9u7 | libservlet3.1-java-doc_8.5.54-0+deb9u7_all.deb |
Debian | 11 | all | tomcat9-examples | < 9.0.43-2~deb11u1 | tomcat9-examples_9.0.43-2~deb11u1_all.deb |
Debian | 9 | all | libservlet3.1-java | < 8.5.54-0+deb9u7 | libservlet3.1-java_8.5.54-0+deb9u7_all.deb |
Debian | 9 | all | libtomcat8-java | < 8.5.54-0+deb9u7 | libtomcat8-java_8.5.54-0+deb9u7_all.deb |
Debian | 9 | all | tomcat8 | < 8.5.54-0+deb9u7 | tomcat8_8.5.54-0+deb9u7_all.deb |
Debian | 9 | all | tomcat8-common | < 8.5.54-0+deb9u7 | tomcat8-common_8.5.54-0+deb9u7_all.deb |
Debian | 9 | all | libtomcat8-embed-java | < 8.5.54-0+deb9u7 | libtomcat8-embed-java_8.5.54-0+deb9u7_all.deb |
Debian | 9 | all | tomcat8-user | < 8.5.54-0+deb9u7 | tomcat8-user_8.5.54-0+deb9u7_all.deb |
Debian | 11 | all | libtomcat9-embed-java | < 9.0.43-2~deb11u1 | libtomcat9-embed-java_9.0.43-2~deb11u1_all.deb |
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.123 Low
EPSS
Percentile
95.3%