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Home CVE Database CVE-2018-1000204

CVE-2018-1000204

Description

** DISPUTED ** 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 in https://github.com/torvalds/linux/commit/a45b599ad808c3c982fdcdc12b0b8611c2f92824 already. 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. NOTE: third parties dispute the relevance of this report, noting that the requirement for an attacker to have both the CAP_SYS_ADMIN and CAP_SYS_RAWIO capabilities makes it virtually impossible to exploit.

Priority: MEDIUM
CVSS v3: 5.3
Component: linux
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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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Fixed LIN10-4224
10.17.41.9 Wind River Linux LTS 10.17.41.9
Wind River Linux LTS 10.17.41.10
Wind River Linux LTS 10.17.41.11
Wind River Linux LTS 10.17.41.12
Wind River Linux LTS 10.17.41.13
Wind River Linux LTS 10.17.41.14
Wind River Linux LTS 10.17.41.15
Wind River Linux LTS 10.17.41.16
Wind River Linux LTS 10.17.41.17
Wind River Linux LTS 10.17.41.18
Wind River Linux LTS 10.17.41.20
Wind River Linux LTS 10.17.41.21
Wind River Linux LTS 10.17.41.22
Wind River Linux LTS 10.17.41.23
Wind River Linux LTS 10.17.41.24
Wind River Linux LTS 10.17.41.25
Wind River Linux LTS 10.17.41.26
Wind River Linux 8 Fixed LIN8-9384
8.0.0.27 --
Wind River Linux 9 Fixed LIN9-7067
9.0.0.17 --
Wind River Linux 7 Fixed -- 7.0.0.29 --
Wind River Linux LTS 21 Not Vulnerable -- -- --
Wind River Linux LTS 22 Not Vulnerable -- -- --
Wind River Linux LTS 18 Not Vulnerable -- -- --
Wind River Linux LTS 19 Not Vulnerable -- -- --
Wind River Linux CD release Not Vulnerable -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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