CVE-2017-7889

Description

The mm subsystem in the Linux kernel through 3.2 does not properly enforce the CONFIG_STRICT_DEVMEM protection mechanism, which allows local users to read or write to kernel memory locations in the first megabyte (and bypass slab-allocation access restrictions) via an application that opens the /dev/mem file, related to arch/x86/mm/init.c and drivers/char/mem.c.

Risk Information

Base Score

7.8

MODERATE

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Score

Exploitation Probability

0.031

Associated Vulnerability

Vulnerability	OS Platform
Dtrace-modules-3.8.13-118.20.1.el6uek update (ELSA-2017-3657) dtrace-modules-3.8.13-118.20.1.el6uek-0.4.5-3.el6.x86_64.rpm	Linux
Dtrace-modules-3.8.13-118.20.1.el7uek update (ELSA-2017-3657) dtrace-modules-3.8.13-118.20.1.el7uek-0.4.5-3.el7.x86_64.rpm	Linux
Incorrect Permission Assignment for Critical Resource Vulnerability (CVE-2017-7889)	NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234