CVE-2019-9213

Advisory lineage Upstream: 0 Downstream: 37
Modified
Published: 05 Mar 2019, 22:00
Last modified:04 Aug 2024, 21:38

Vulnerability Summary

Overall Risk (default)
medium
33/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
6.93% LOW
7% probability +1.63%
KEV
Not listed
Ransomware
No reports
Public exploits
5 found
Dark Web
Not detected

Timeline

05 Mar 2019, 22:00
Published
Vulnerability first disclosed
04 Aug 2024, 21:38
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 6.93%• Percentile: 92%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • canonical•ubuntu_linux

    12.04 | 14.04 | 16.04 | 18.10

  • debian•debian_linux

    8.0

  • linux•linux_kernel

    ≥ 4.9, < 4.9.162 | ≥ 4.14, < 4.14.105 | ≥ 4.19, < 4.19.27 | ≥ 4.20, < 4.20.14

  • opensuse•leap

    15.0 | 42.3

  • redhat•enterprise_linux

    7.0 | 8.0

References (26)