SB2015011404 - Ubuntu update for tomcat6, tomcat7
Published: January 14, 2015 Updated: October 30, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2012-3546)
CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to modify data.
The vulnerability exists in the org/apache/catalina/realm/RealmBase.java in Apache Tomcat. A remote attacker can bypass security-constraint checks by leveraging a previous setUserPrincipal call and then placing /j_security_check at the end of a URI.
2) Cross-site request forgery (CVE-ID: CVE-2012-4431)
CWE-ID: CWE-352 - Cross-Site Request Forgery (CSRF)
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform cross-site request forgery attacks.
The vulnerability exists due to insufficient validation of the HTTP request origin in the org/apache/catalina/filters/CsrfPreventionFilter.java in Apache Tomcat. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website.
3) Resource management error (CVE-ID: CVE-2012-4534)
CWE-ID: CWE-399 - Resource Management Errors
CVSSv4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources in the org/apache/tomcat/util/net/NioEndpoint.java in Apache Tomcat. A remote attacker can pass specially crafted data and perform a denial of service (DoS) attack by terminating the connection during the reading of a response.
Remediation
Install update from vendor's website.