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prionPRIOn knowledge basePRION:CVE-2019-9213
HistoryMar 05, 2019 - 10:29 p.m.

Null pointer dereference

2019-03-0522:29:00
PRIOn knowledge base
www.prio-n.com
8

5.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

35.0%

In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.

References