CVE-2016-5542
Publication date 25 October 2016
Last updated 24 July 2024
Ubuntu priority
Unspecified vulnerability in Oracle Java SE 6u121, 7u111, 8u102; and Java SE Embedded 8u101 allows remote attackers to affect integrity via vectors related to Libraries.
From the Ubuntu Security Team
It was discovered that OpenJDK did not restrict the set of algorithms used for Jar integrity verification. An attacker could use this to modify without detection the content of a JAR file, affecting system integrity.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| openjdk-6 | ||
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty |
Fixed 6b40-1.13.12-0ubuntu0.14.04.3
|
|
| openjdk-7 | ||
| 16.04 LTS xenial | Not in release | |
| 14.04 LTS trusty |
Fixed 7u121-2.6.8-1ubuntu0.14.04.1
|
|
| openjdk-8 | ||
| 16.04 LTS xenial |
Fixed 8u111-b14-2ubuntu0.16.04.2
|
|
| 14.04 LTS trusty | Not in release | |
Notes
sbeattie
The following algorithms and key sizes are restricted in this release: - MD2 (in either the digest or signature algorithm) - RSA keys less than 1024 bits Upstream is planning to restrict MD5-based signatures in signed JARs in the January 2017 CPU. . The list of disabled algorithms is controlled via a new security property, jdk.jar.disabledAlgorithms, in the java.security file. This property contains a list of disabled algorithms and key sizes for cryptographically signed JAR files.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
3.1 · Low
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-3121-1
- OpenJDK 8 vulnerabilities
- 3 November 2016
- USN-3130-1
- OpenJDK 7 vulnerabilities
- 17 November 2016
- USN-3154-1
- OpenJDK 6 vulnerabilities
- 8 December 2016