CVE-2019-12817

Advisory lineage Upstream: 0 Downstream: 12
Modified
Published: 25 Jun 2019, 11:12
Last modified:04 Aug 2024, 23:32

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7 HIGH
v3.1 (nvd)
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Jun 2019, 11:12
Published
Vulnerability first disclosed
04 Aug 2024, 23:32
Last Modified
Vulnerability information updated

Description

arch/powerpc/mm/mmu_context_book3s64.c in the Linux kernel before 5.1.15 for powerpc has a bug where unrelated processes may be able to read/write to one another's virtual memory under certain conditions via an mmap above 512 TB. Only a subset of powerpc systems are affected.

CVSS Metrics

  • v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.9AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS Trends

Current EPSS score: 0.06%• Percentile: 20%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • canonical•ubuntu_linux

    18.04 | 18.10 | 19.04

  • debian•debian_linux

    9.0 | 10.0

  • fedoraproject•fedora

    29 | 30

  • linux•linux_kernel

    < 5.1.15

  • opensuse•leap

    15.1

  • redhat•enterprise_linux

    8.0

  • redhat•enterprise_linux_eus

    8.1 | 8.2 | 8.4

  • redhat•enterprise_linux_server_aus

    8.2 | 8.4

  • redhat•enterprise_linux_server_tus

    8.2 | 8.4

References (13)