high
7
CWE
502
Advisory Published
Updated

CVE-2021-25329

First published: Mon Mar 01 2021(Updated: )

The fix for CVE-2020-9484 was incomplete. When using Apache Tomcat 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61 or 7.0.0. to 7.0.107 with a configuration edge case that was highly unlikely to be used, the Tomcat instance was still vulnerable to CVE-2020-9494. Note that both the previously published prerequisites for CVE-2020-9484 and the previously published mitigations for CVE-2020-9484 also apply to this issue.

Credit: security@apache.org security@apache.org

Affected SoftwareAffected VersionHow to fix
redhat/jws5-ecj<0:4.12.0-3.redhat_2.2.el7
0:4.12.0-3.redhat_2.2.el7
redhat/jws5-tomcat<0:9.0.43-11.redhat_00011.1.el7
0:9.0.43-11.redhat_00011.1.el7
redhat/jws5-tomcat-native<0:1.2.26-3.redhat_3.el7
0:1.2.26-3.redhat_3.el7
redhat/jws5-tomcat-vault<0:1.1.8-2.Final_redhat_00003.1.el7
0:1.1.8-2.Final_redhat_00003.1.el7
redhat/jws5-ecj<0:4.12.0-3.redhat_2.2.el8
0:4.12.0-3.redhat_2.2.el8
redhat/jws5-tomcat<0:9.0.43-11.redhat_00011.1.el8
0:9.0.43-11.redhat_00011.1.el8
redhat/jws5-tomcat-native<0:1.2.26-3.redhat_3.el8
0:1.2.26-3.redhat_3.el8
redhat/jws5-tomcat-vault<0:1.1.8-2.Final_redhat_00003.1.el8
0:1.1.8-2.Final_redhat_00003.1.el8
redhat/tomcat<10.0.2
10.0.2
redhat/tomcat<9.0.43
9.0.43
redhat/tomcat<8.5.63
8.5.63
redhat/tomcat<7.0.108
7.0.108
ubuntu/tomcat9<9.0.16-3ubuntu0.18.04.2
9.0.16-3ubuntu0.18.04.2
ubuntu/tomcat9<9.0.31-1ubuntu0.2
9.0.31-1ubuntu0.2
debian/tomcat9
9.0.31-1~deb10u6
9.0.31-1~deb10u12
9.0.43-2~deb11u9
9.0.43-2~deb11u10
9.0.70-2
Apache Tomcat>=7.0.0<=7.0.107
Apache Tomcat>=8.5.0<=8.5.61
Apache Tomcat>=9.0.0<=9.0.41
Apache Tomcat=9.0.0-milestone1
Apache Tomcat=9.0.0-milestone10
Apache Tomcat=9.0.0-milestone11
Apache Tomcat=9.0.0-milestone12
Apache Tomcat=9.0.0-milestone13
Apache Tomcat=9.0.0-milestone14
Apache Tomcat=9.0.0-milestone15
Apache Tomcat=9.0.0-milestone16
Apache Tomcat=9.0.0-milestone17
Apache Tomcat=9.0.0-milestone18
Apache Tomcat=9.0.0-milestone19
Apache Tomcat=9.0.0-milestone2
Apache Tomcat=9.0.0-milestone20
Apache Tomcat=9.0.0-milestone21
Apache Tomcat=9.0.0-milestone22
Apache Tomcat=9.0.0-milestone23
Apache Tomcat=9.0.0-milestone24
Apache Tomcat=9.0.0-milestone25
Apache Tomcat=9.0.0-milestone26
Apache Tomcat=9.0.0-milestone27
Apache Tomcat=9.0.0-milestone3
Apache Tomcat=9.0.0-milestone4
Apache Tomcat=9.0.0-milestone5
Apache Tomcat=9.0.0-milestone6
Apache Tomcat=9.0.0-milestone7
Apache Tomcat=9.0.0-milestone8
Apache Tomcat=9.0.0-milestone9
Apache Tomcat=10.0.0
Apache Tomcat=10.0.0-milestone1
Apache Tomcat=10.0.0-milestone10
Apache Tomcat=10.0.0-milestone2
Apache Tomcat=10.0.0-milestone3
Apache Tomcat=10.0.0-milestone4
Apache Tomcat=10.0.0-milestone5
Apache Tomcat=10.0.0-milestone6
Apache Tomcat=10.0.0-milestone7
Apache Tomcat=10.0.0-milestone8
Apache Tomcat=10.0.0-milestone9
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Oracle Agile PLM=9.3.3
Oracle Agile PLM=9.3.6
Oracle Communications Cloud Native Core Policy=1.14.0
Oracle Communications Cloud Native Core Security Edge Protection Proxy=1.6.0
Oracle Communications Instant Messaging Server=10.0.1.5.0
Oracle Database=12.2.0.1
Oracle Database=19c
Oracle Database=21c
Oracle Graph Server And Client<21.3.0
Oracle Instantis Enterprisetrack=17.1
Oracle Instantis Enterprisetrack=17.2
Oracle Instantis Enterprisetrack=17.3
Oracle Managed File Transfer=12.2.1.3.0
Oracle Managed File Transfer=12.2.1.4.0
Oracle Mysql Enterprise Monitor<=8.0.23
Oracle Siebel Ui Framework<21.9
Oracle Siebel Ui Framework=21.9

Remedy

Users may configure the PersistenceManager with an appropriate value for sessionAttributeValueClassNameFilter to ensure that only application provided attributes are serialized and deserialized. For more details about the configuration, refer to the Apache Tomcat 9 Configuration Reference https://tomcat.apache.org/tomcat-9.0-doc/config/manager.html.

Remedy

https://www.oracle.com//security-alerts/cpujul2021.html

Remedy

https://www.oracle.com/security-alerts/cpujan2022.html

Remedy

https://www.oracle.com/security-alerts/cpuoct2021.html

Remedy

https://lists.apache.org/thread.html/rf6d5d57b114678d8898005faef31e9fd6d7c981fcc4ccfc3bc272fc9@%3Cdev.tomcat.apache.org%3E

Remedy

https://github.com/apache/tomcat/commit/74b105657ffbd1d1de80455f03446c3bbf30d1f5

Remedy

https://github.com/apache/tomcat/commit/93f0cc403a9210d469afc2bd9cf03ab3251c6f35

Remedy

https://github.com/apache/tomcat/commit/4785433a226a20df6acbea49296e1ce7e23de453

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2021-25329?

    CVE-2021-25329 is a vulnerability in Apache Tomcat that allows remote attackers to execute arbitrary code or cause a denial of service.

  • How severe is CVE-2021-25329?

    CVE-2021-25329 has a high severity rating with a CVSS score of 7.0.

  • Which versions of Apache Tomcat are affected by CVE-2021-25329?

    CVE-2021-25329 affects Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41, 8.5.0 to 8.5.61, and 7.0.0 to 7.0.107.

  • How can I fix CVE-2021-25329?

    To fix CVE-2021-25329, you should upgrade Apache Tomcat to version 10.0.2, 9.0.43, 8.5.63, or 7.0.108, depending on the affected version.

  • Where can I find more information about CVE-2021-25329?

    You can find more information about CVE-2021-25329 at the following references: [Reference 1](https://access.redhat.com/security/cve/CVE-2020-9484), [Reference 2](https://github.com/apache/tomcat/commit/6d66e99ef85da93e4d2c2a536ca51aa3418bfaf4), [Reference 3](https://github.com/apache/tomcat/commit/4785433a226a20df6acbea49296e1ce7e23de453).

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