Home CVE Database CVE-2018-18281

CVE-2018-18281

Description

Since Linux kernel version 3.2, the mremap() syscall performs TLB flushes after dropping pagetable locks. If a syscall such as ftruncate() removes entries from the pagetables of a task that is in the middle of mremap(), a stale TLB entry can remain for a short time that permits access to a physical page after it has been released back to the page allocator and reused. This is fixed in the following kernel versions: 4.9.135, 4.14.78, 4.18.16, 4.19.

Priority: MEDIUM
CVSS v3: 7.8
Publish Date: Oct 30, 2018
Related ID: --
CVSS v2: HIGH
Modified Date: Oct 30, 2018

Find out more about CVE-2018-18281 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 LIN10-4893
10.17.41.13 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 9 Fixed LIN9-7657
9.0.0.20 --
Wind River Linux 8 Fixed LIN8-9965
8.0.0.28 Wind River Linux 8.0.0.28
Wind River Linux 8.0.0.29
Wind River Linux 8.0.0.30
Wind River Linux 8.0.0.31
Wind River Linux 8.0.0.32
Wind River Linux 8.0.0.33
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
Linux 7 SCP Fixed -- 7.0.0.30 --
Linux 7 CGP Not Vulnerable -- -- --

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