| Revision Date: | 2017-12-20 | Version: | 1 | | Title: | CVE-2017-17807 on Ubuntu 18.04 LTS (bionic) - medium. | | Description: | The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c. It was discovered that the keyring implementation in the Linux kernel did not properly check permissions when a key request was performed on a task's default keyring. A local attacker could use this to add keys to unauthorized keyrings.
| | Family: | unix | Class: | vulnerability | | Status: | | Reference(s): | CVE-2017-17807
| | Platform(s): | Ubuntu 18.04 LTS
| Product(s): | | | Definition Synopsis | | Ubuntu 18.04 LTS (bionic) is installed. AND Package Information
NOT While related to the CVE in some way, the 'linux' package in bionic is not affected (note: '4.15.0-10.11').
OR NOT While related to the CVE in some way, the 'linux-aws' package in bionic is not affected (note: '4.15.0-1001.1').
OR NOT While related to the CVE in some way, the 'linux-azure' package in bionic is not affected (note: '4.15.0-1002.2').
OR NOT While related to the CVE in some way, the 'linux-gcp' package in bionic is not affected (note: '4.15.0-1001.1').
OR NOT While related to the CVE in some way, the 'linux-hwe' package in bionic is not affected.
OR The 'linux-hwe-edge' package in bionic is affected. An update containing the fix has been completed and is pending publication (note: '4.18.0-8.9~18.04.1').
OR NOT While related to the CVE in some way, the 'linux-kvm' package in bionic is not affected (note: '4.15.0-1002.2').
OR NOT While related to the CVE in some way, the 'linux-oem' package in bionic is not affected (note: '4.15.0-1002.3').
OR NOT While related to the CVE in some way, the 'linux-raspi2' package in bionic is not affected (note: '4.15.0-1006.7').
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