ID

VAR-202005-1052

CVE

CVE-2020-9484

TITLE

Apache Tomcat Code problem vulnerability

DESCRIPTION

When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a) an attacker is able to control the contents and name of a file on the server; and b) the server is configured to use the PersistenceManager with a FileStore; and c) the PersistenceManager is configured with sessionAttributeValueClassNameFilter="null" (the default unless a SecurityManager is used) or a sufficiently lax filter to allow the attacker provided object to be deserialized; and d) the attacker knows the relative file path from the storage location used by FileStore to the file the attacker has control over; then, using a specifically crafted request, the attacker will be able to trigger remote code execution via deserialization of the file under their control. Note that all of conditions a) to d) must be true for the attack to succeed. The program implements support for Servlet and JavaServer Page (JSP). The following products and versions are affected: Apache Tomcat 10.0.0-M1 to 10.0.0-M4, 9.0.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54, 7.0.0 to Version 7.0.103. For the stable distribution (buster), these problems have been fixed in version 9.0.31-1~deb10u2. We recommend that you upgrade your tomcat9 packages. For the detailed security status of tomcat9 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/tomcat9 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAl8R6BwACgkQEMKTtsN8 TjbUrw//fOLw1bfjQwHr4fug5xgGtIjccQvMgZ6r4jVWDNUWGns/n0HBIg7IFANW 1LTBXunNygapGke96Cexs/mimcs47wr9Xj6B9R7935NgF7dbXiDPhX99fmMSu4qE mpt9GmynGSOqr2qt+bHMZSIrZ2rpT/WoDbmnVvK0h30Il7VZ2pMEbzq7gd7sfsbO 0FbQr9kza5d5kvih7DLfq/7plhLouyUhzAab3UUJvI1B3ASD4pfEFDSmBJusHJGG 2CTtrO8IFUyYW0ev4/I2KT6rrFiXccEtFhUlpU09SLpy96FP161UVoHILkPHhfqI 9XILKEf0mKVlDfq5q2TOY5WVl8palc5o/Z3xefO4/wZc7/qNNnyzwcNHl6s14czv REID8Llfbro3/XWHkwLXPNFr1VzYXZSX1XhTwKWPWaH+L5WsUSr5uryqIUvSQ96L tTWv3G7KZDwVlio1XJ1t7ZxMkKqEBjvucShFgaOIw1nVD1IrssMKMz9UJQCd4fH5 RtUakyBzUuPbAhUcunMj23n2slZ9WbCANIGKy56O6R71rYI9mYOG2nF2IuUct/F2 iG3/SLJCe2ghVx2Lgz8/nBhZfPEF5FZ2kPHb9KpjjyZ+vl8ZXH83heaYDlDAknXS bTsyFezxJiAwaa9xozjItZPdIBFP9lG8Txmv1AotH7WV/8dRsOU= =E8Ei -----END PGP SIGNATURE----- . The purpose of this text-only errata is to inform you about the security issues fixed in this release. Installation instructions are available from the Fuse 7.9.0 product documentation page: https://access.redhat.com/documentation/en-us/red_hat_fuse/7.9/ 4. Bugs fixed (https://bugzilla.redhat.com/): 1443635 - CVE-2017-5645 log4j: Socket receiver deserialization vulnerability 1730462 - CVE-2020-1695 resteasy: Improper validation of response header in MediaTypeHeaderDelegate.java class 1758619 - CVE-2019-16869 netty: HTTP request smuggling by mishandled whitespace before the colon in HTTP headers 1764640 - CVE-2019-12402 apache-commons-compress: Infinite loop in name encoding algorithm 1772008 - CVE-2019-14887 wildfly: The 'enabled-protocols' value in legacy security is not respected if OpenSSL security provider is in use 1785376 - CVE-2017-18640 snakeyaml: Billion laughs attack via alias feature 1790309 - CVE-2020-1925 olingo-odata: Server side request forgery in AsyncResponseWrapperImpl 1798509 - CVE-2019-20445 netty: HttpObjectDecoder.java allows Content-Length header to accompanied by second Content-Length header 1805006 - CVE-2020-6950 Mojarra: Path traversal via either the loc parameter or the con parameter, incomplete fix of CVE-2018-14371 1805501 - CVE-2020-10693 hibernate-validator: Improper input validation in the interpolation of constraint error messages 1806398 - CVE-2020-1938 tomcat: Apache Tomcat AJP File Read/Inclusion Vulnerability 1806835 - CVE-2020-1935 tomcat: Mishandling of Transfer-Encoding header allows for HTTP request smuggling 1814974 - CVE-2020-10688 RESTEasy: RESTEASY003870 exception in RESTEasy can lead to a reflected XSS attack 1825714 - CVE-2020-10714 wildfly-elytron: session fixation when using FORM authentication 1828459 - CVE-2020-10719 undertow: invalid HTTP request with large chunk size 1838332 - CVE-2020-9484 tomcat: deserialization flaw in session persistence storage leading to RCE 1845626 - CVE-2020-5410 spring-cloud-config-server: sending a request using a specially crafted URL can lead to a directory traversal attack 1851420 - CVE-2020-11996 tomcat: specially crafted sequence of HTTP/2 requests can lead to DoS 1853595 - CVE-2020-14297 wildfly: Some EJB transaction objects may get accumulated causing Denial of Service 1853652 - CVE-2020-14040 golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash 1857024 - CVE-2020-13935 tomcat: multiple requests with invalid payload length in a WebSocket frame could lead to DoS 1857040 - CVE-2020-13934 tomcat: OutOfMemoryException caused by HTTP/2 connection leak could lead to DoS 1860054 - CVE-2020-14338 wildfly: XML validation manipulation due to incomplete application of use-grammar-pool-only in xercesImpl 1860218 - CVE-2020-14340 xnio: file descriptor leak caused by growing amounts of NIO Selector file handles may lead to DoS 1879042 - CVE-2020-25633 resteasy-client: potential sensitive information leakage in JAX-RS RESTEasy Client's WebApplicationException handling 1880101 - CVE-2020-13920 activemq: improper authentication allows MITM attack 1881158 - CVE-2020-5421 springframework: RFD protection bypass via jsessionid 1881353 - CVE-2020-25638 hibernate-core: SQL injection vulnerability when both hibernate.use_sql_comments and JPQL String literals are used 1881637 - CVE-2020-25640 wildfly: resource adapter logs plaintext JMS password at warning level on connection error 1885485 - CVE-2020-25644 wildfly-openssl: memory leak per HTTP session creation in WildFly OpenSSL 1886587 - CVE-2020-13956 apache-httpclient: incorrect handling of malformed authority component in request URIs 1887257 - CVE-2020-26945 mybatis: mishandles deserialization of object streams which could result in remote code execution 1891132 - CVE-2020-27216 jetty: local temporary directory hijacking vulnerability 1898235 - CVE-2020-13954 cxf: XSS via the styleSheetPath 1903727 - CVE-2020-17510 shiro: specially crafted HTTP request may cause an authentication bypass 1908832 - CVE-2020-26258 XStream: Server-Side Forgery Request vulnerability can be activated when unmarshalling 1912881 - CVE-2020-28052 bouncycastle: password bypass in OpenBSDBCrypt.checkPassword utility possible 1913312 - CVE-2020-17518 apache-flink: directory traversal attack allows remote file writing through the REST API 1937440 - CVE-2020-13936 velocity: arbitrary code execution when attacker is able to modify templates 1941050 - CVE-2021-27906 pdfbox: OutOfMemory-Exception while loading a crafted PDF file 1941055 - CVE-2021-27807 pdfbox: infinite loop while loading a crafted PDF file 1945714 - CVE-2021-28165 jetty: Resource exhaustion when receiving an invalid large TLS frame 5. ========================================================================== Ubuntu Security Notice USN-6943-1 August 01, 2024 tomcat8, tomcat9 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in Tomcat. A remote attacker could possibly use this issue to execute arbitrary code. This issue only affected tomcat8 for Ubuntu 18.04 LTS (CVE-2020-9484) It was discovered that Tomcat incorrectly handled certain HTTP/2 connection requests. A remote attacker could use this issue to obtain wrong responses possibly containing sensitive information. This issue only affected tomcat8 for Ubuntu 18.04 LTS (CVE-2021-25122) Thomas Wozenilek discovered that Tomcat incorrectly handled certain TLS packets. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected tomcat8 for Ubuntu 18.04 LTS (CVE-2021-41079) Trung Pham discovered that a race condition existed in Tomcat when handling session files with FileStore. A remote attacker could possibly use this issue to execute arbitrary code. This issue affected tomcat8 for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, and tomcat9 for Ubuntu 18.04 LTS and Ubuntu 20.04 LTS (CVE-2022-23181) It was discovered that Tomcat's documentation incorrectly stated that EncryptInterceptor provided availability protection when running over an untrusted network. A remote attacker could possibly use this issue to cause a denial of service even if EncryptInterceptor was being used. This issue affected tomcat8 for Ubuntu 18.04 LTS, and tomcat9 for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS (CVE-2022-29885) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS tomcat9-docs 9.0.58-1ubuntu0.1+esm2 Available with Ubuntu Pro Ubuntu 20.04 LTS libtomcat9-java 9.0.31-1ubuntu0.6 tomcat9 9.0.31-1ubuntu0.6 tomcat9-docs 9.0.31-1ubuntu0.6 Ubuntu 18.04 LTS libtomcat8-java 8.5.39-1ubuntu1~18.04.3+esm2 Available with Ubuntu Pro libtomcat9-java 9.0.16-3ubuntu0.18.04.2+esm2 Available with Ubuntu Pro tomcat8 8.5.39-1ubuntu1~18.04.3+esm2 Available with Ubuntu Pro tomcat8-docs 8.5.39-1ubuntu1~18.04.3+esm2 Available with Ubuntu Pro tomcat9 9.0.16-3ubuntu0.18.04.2+esm2 Available with Ubuntu Pro tomcat9-docs 9.0.16-3ubuntu0.18.04.2+esm2 Available with Ubuntu Pro Ubuntu 16.04 LTS libtomcat8-java 8.0.32-1ubuntu1.13+esm1 Available with Ubuntu Pro tomcat8 8.0.32-1ubuntu1.13+esm1 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. Solution: Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. The References section of this erratum contains a download link for the update. You must be logged in to download the update. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: tomcat security update Advisory ID: RHSA-2020:2530-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:2530 Issue date: 2020-06-11 CVE Names: CVE-2020-9484 ==================================================================== 1. Summary: An update for tomcat is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - noarch Red Hat Enterprise Linux Client Optional (v. 7) - noarch Red Hat Enterprise Linux ComputeNode (v. 7) - noarch Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch Red Hat Enterprise Linux Server (v. 7) - noarch Red Hat Enterprise Linux Server Optional (v. 7) - noarch Red Hat Enterprise Linux Workstation (v. 7) - noarch Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch 3. Description: Apache Tomcat is a servlet container for the Java Servlet and JavaServer Pages (JSP) technologies. Security Fix(es): * tomcat: deserialization flaw in session persistence storage leading to RCE (CVE-2020-9484) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1838332 - CVE-2020-9484 tomcat: deserialization flaw in session persistence storage leading to RCE 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: tomcat-7.0.76-12.el7_8.src.rpm noarch: tomcat-servlet-3.0-api-7.0.76-12.el7_8.noarch.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: tomcat-7.0.76-12.el7_8.noarch.rpm tomcat-admin-webapps-7.0.76-12.el7_8.noarch.rpm tomcat-docs-webapp-7.0.76-12.el7_8.noarch.rpm tomcat-el-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-javadoc-7.0.76-12.el7_8.noarch.rpm tomcat-jsp-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-jsvc-7.0.76-12.el7_8.noarch.rpm tomcat-lib-7.0.76-12.el7_8.noarch.rpm tomcat-webapps-7.0.76-12.el7_8.noarch.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: tomcat-7.0.76-12.el7_8.src.rpm noarch: tomcat-servlet-3.0-api-7.0.76-12.el7_8.noarch.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: tomcat-7.0.76-12.el7_8.noarch.rpm tomcat-admin-webapps-7.0.76-12.el7_8.noarch.rpm tomcat-docs-webapp-7.0.76-12.el7_8.noarch.rpm tomcat-el-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-javadoc-7.0.76-12.el7_8.noarch.rpm tomcat-jsp-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-jsvc-7.0.76-12.el7_8.noarch.rpm tomcat-lib-7.0.76-12.el7_8.noarch.rpm tomcat-webapps-7.0.76-12.el7_8.noarch.rpm Red Hat Enterprise Linux Server (v. 7): Source: tomcat-7.0.76-12.el7_8.src.rpm noarch: tomcat-7.0.76-12.el7_8.noarch.rpm tomcat-admin-webapps-7.0.76-12.el7_8.noarch.rpm tomcat-el-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-jsp-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-lib-7.0.76-12.el7_8.noarch.rpm tomcat-servlet-3.0-api-7.0.76-12.el7_8.noarch.rpm tomcat-webapps-7.0.76-12.el7_8.noarch.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: tomcat-7.0.76-12.el7_8.noarch.rpm tomcat-admin-webapps-7.0.76-12.el7_8.noarch.rpm tomcat-docs-webapp-7.0.76-12.el7_8.noarch.rpm tomcat-el-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-javadoc-7.0.76-12.el7_8.noarch.rpm tomcat-jsp-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-jsvc-7.0.76-12.el7_8.noarch.rpm tomcat-lib-7.0.76-12.el7_8.noarch.rpm tomcat-webapps-7.0.76-12.el7_8.noarch.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: tomcat-7.0.76-12.el7_8.src.rpm noarch: tomcat-7.0.76-12.el7_8.noarch.rpm tomcat-admin-webapps-7.0.76-12.el7_8.noarch.rpm tomcat-el-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-jsp-2.2-api-7.0.76-12.el7_8.noarch.rpm tomcat-lib-7.0.76-12.el7_8.noarch.rpm tomcat-servlet-3.0-api-7.0.76-12.el7_8.noarch.rpm tomcat-webapps-7.0.76-12.el7_8.noarch.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: tomcat-docs-webapp-7.0.76-12.el7_8.noarch.rpm tomcat-javadoc-7.0.76-12.el7_8.noarch.rpm tomcat-jsvc-7.0.76-12.el7_8.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-9484 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXuH9rtzjgjWX9erEAQiuZA/7BY8EEQxcPpMTuZ1szv08nHLdHOShDyEr UqhsbGTHUgsqb+cIwbOJrz3nn66y4S/5MIDyUUI/77t5/z/LR8rD7zM+6mPcQyVy QjSTPH8xiVNq4CyMCJggmsb+jecS5BHRDEhHKjEyuqWCx9wJlQQTTFMvlUBypXLt AxJqARUjSFmgxSdjbZDhDIzpNH5RR0lyKCuHf9yd+X9FNomFEAFIjLz6oSXDiMYp Lf4YPas24BmF7CXTajzecKM2PZZEehtNVFFQLi96APXLQq8uZBw+8d4gTSq7SEsy U6MZm3R+1Lp9BgGgxD80dRDoAIFL1KNRKJnRUPan+SSKYLPkU2dOwdPVd2t4OxY1 whBcfo8z6zsGTHIxXu7756/AUYhBkvrI2CVOp1tzM+SMDlLkJL9eBuTbXw98ipI0 jAUKlqxksz///7ZCWugsLt9VhDZRSXUSk7JQ4ASQ9bQFouzsUiEv0MSTRW+ym9HU 8/FjgG/yznR3DrHOjKVY++Dw2LUg2lv/viBVjCl2h9lZoULK3eBwIUJ0fOYCRUOK mytOuin4i+pI+jHCm/W91sK+piAB5yirVpqra98zXaDGayN+V6mdTr3omPsNDMP5 VtOWpWiInHKmeN1cErONkxeAT/zHdFagRXEhqbnArSoZIC/SV4KrykDGHw+ldO/o yI/DufEuzcM\xbfNT -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . Description: Red Hat JBoss Web Server is a fully integrated and certified set of components for hosting Java web applications. This release of Red Hat JBoss Web Server 5.3.1 serves as a replacement for Red Hat JBoss Web Server 5.3.0, and includes bug fixes, enhancements, and component upgrades, which are documented in the Release Notes, linked to in the References. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. (CVE-2020-11996) It was discovered that Tomcat did not properly release the HTTP/1.1 processor after the upgrade to HTTP/2. (CVE-2020-13934) It was discovered that Tomcat did not properly validate the payload length in a WebSocket frame. (CVE-2020-13935) It was discovered that Tomcat did not properly deserialize untrusted data

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

code problem

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Ubuntu

SOURCES

LAST UPDATE DATE

2025-04-02T22:21:35.052000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE