| Revision Date: | 2018-10-22 | Version: | 1 | | Title: | CVE-2018-18559 on Ubuntu 18.04 LTS (bionic) - medium. | | Description: | In the Linux kernel through 4.19, a use-after-free can occur due to a race condition between fanout_add from setsockopt and bind on an AF_PACKET socket. This issue exists because of the 15fe076edea787807a7cdc168df832544b58eba6 incomplete fix for a race condition. The code mishandles a certain multithreaded case involving a packet_do_bind unregister action followed by a packet_notifier register action. Later, packet_release operates on only one of the two applicable linked lists. The attacker can achieve Program Counter control.
| | Family: | unix | Class: | vulnerability | | Status: | | Reference(s): | CVE-2018-18559
| | 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-azure-edge' package in bionic is not affected (note: '4.18.0-1004.4~18.04.1').
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 NOT While related to the CVE in some way, the 'linux-hwe-edge' package in bionic is not affected (note: '4.18.0-11.12~18.04.1').
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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