VDB

CVE-2020-14308

CVE-2020-14308 PUBLISHED CVSS 6.400000095367432 MEDIUM

In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process.

EPSS 0.43% · 35.2th percentile

Risk Scores

CVSS 3.1
6.400000095367432
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.43%
35.2th percentile

Affected Products

VendorProductVersions
Ubuntu:20.04:LTSgrub2-unsigned0, 2.04-1ubuntu44, 2.04-1ubuntu44.2
Ubuntu:16.04:LTSgrub22.02~beta2-36ubuntu3.8, 2.02~beta2-36ubuntu3.18, 2.02~beta2-36ubuntu3.17
Ubuntu:20.04:LTSgrub22.04-1ubuntu26, 2.04-1ubuntu23, 2.04-1ubuntu16
Ubuntu:Pro:14.04:LTSgrub2-signed1.23, 1.34.18, 1.34.17
Ubuntu:Pro:14.04:LTSgrub22.02~beta2-9ubuntu1.16, 2.02~beta2-9ubuntu1.17, *
Ubuntu:18.04:LTSgrub2-signed1.93, 1.85, 1.87
Ubuntu:16.04:LTSgrub2-unsigned2.04-1ubuntu44.1.2, 2.04-1ubuntu44, 2.04-1ubuntu44.1
Ubuntu:16.04:LTSgrub2-signed1.66.20, 1.66.16, 1.66.19
Ubuntu:18.04:LTSgrub2-unsigned2.04-1ubuntu44.1.2, 0, 2.04-1ubuntu44
Ubuntu:18.04:LTSgrub22.02-2ubuntu8.3, 2.02-2ubuntu8.14, 2.02-2ubuntu8.2
Ubuntu:20.04:LTSgrub2-signed1.133, 1.134, 1.135

Timeline

  • Jul 29, 2020 CVE Published
  • Apr 14, 2021 EPSS Score
  • Jun 23, 2021 EPSS Score
  • Aug 25, 2021 EPSS Score
  • Oct 27, 2021 EPSS Score
  • Jan 6, 2022 EPSS Score
  • Feb 4, 2022 EPSS Score
  • Mar 2, 2022 EPSS Score
  • Apr 1, 2022 EPSS Score
  • May 4, 2022 EPSS Score
  • Jul 6, 2022 EPSS Score
  • Sep 9, 2022 EPSS Score

References

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