Home CVE Database CVE-2018-1000204

CVE-2018-1000204

Description

Linux Kernel version 3.18 to 4.16 incorrectly handles an SG_IO ioctl on /dev/sg0 with dxfer_direction=SG_DXFER_FROM_DEV and an empty 6-byte cmdp. This may lead to copying up to 1000 kernel heap pages to the userspace. This has been fixed upstream already: https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 The problem has limited scope, as users don\'t usually have permissions to access SCSI devices. On the other hand, e.g. the Nero user manual suggests doing `chmod o+r+w /dev/sg*` to make the devices accessible.

Priority: MEDIUM
CVSS v3: 5.3
Publish Date: Jun 26, 2018
Related ID: --
CVSS v2: MEDIUM
Modified Date: Jun 26, 2018

Find out more about CVE-2018-1000204 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Related Products

Product Name Status Defect Fixed Downloads
Linux 7 SCP Not Vulnerable -- -- --
Linux 7 CGP Not Vulnerable -- -- --

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