| Revision Date: | 2016-02-07 | Version: | 1 | | Title: | CVE-2015-8539 on Ubuntu 16.04 LTS (xenial) - medium. | | Description: | The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c. Dmitry Vyukov discovered that the key management subsystem in the Linux kernel did not properly restrict adding a key that already exists but is negatively instantiated. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
| | Family: | unix | Class: | vulnerability | | Status: | | Reference(s): | CVE-2015-8539
| | Platform(s): | Ubuntu 16.04 LTS
| Product(s): | | | Definition Synopsis | | Ubuntu 16.04 LTS (xenial) is installed. AND Package Information
NOT While related to the CVE in some way, the 'linux' package in xenial is not affected (note: '4.4.0-2.16').
OR NOT While related to the CVE in some way, the 'linux-aws' package in xenial is not affected (note: '4.4.0-1001.10').
OR NOT While related to the CVE in some way, the 'linux-azure' package in xenial is not affected (note: '4.11.0-1009.9').
OR NOT While related to the CVE in some way, the 'linux-azure-edge' package in xenial is not affected (note: '4.15.0-1002.2').
OR NOT While related to the CVE in some way, the 'linux-euclid' package in xenial is not affected (note: '4.4.0-9019.20').
OR While related to the CVE in some way, a decision has been made to ignore it (note: 'abandoned').
OR NOT While related to the CVE in some way, the 'linux-gcp' package in xenial is not affected (note: '4.10.0-1004.4').
OR While related to the CVE in some way, a decision has been made to ignore it (note: 'end-of-life').
OR While related to the CVE in some way, a decision has been made to ignore it (note: 'end-of-life').
OR NOT While related to the CVE in some way, the 'linux-hwe' package in xenial is not affected (note: '4.8.0-36.36~16.04.1').
OR NOT While related to the CVE in some way, the 'linux-hwe-edge' package in xenial is not affected (note: '4.8.0-36.36~16.04.1').
OR NOT While related to the CVE in some way, the 'linux-kvm' package in xenial is not affected (note: '4.4.0-1004.9').
OR While related to the CVE in some way, a decision has been made to ignore it (note: 'abandoned').
OR NOT While related to the CVE in some way, the 'linux-oem' package in xenial is not affected (note: '4.13.0-1008.9').
OR NOT While related to the CVE in some way, the 'linux-raspi2' package in xenial is not affected (note: '4.4.0-1003.4').
OR NOT While related to the CVE in some way, the 'linux-snapdragon' package in xenial is not affected (note: '4.4.0-1012.12').
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