p PatchFirst

CVE-2025-0678

CVE-2025-0678 · Grub2: squash4: integer overflow may lead to heap based out-of-bounds write when reading data

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

A flaw was found in grub2. When reading data from a squash4 filesystem, grub's squash4 fs module uses user-controlled parameters from the filesystem geometry to determine the internal buffer size, however, it improperly checks for integer overflows. A maliciously crafted filesystem may lead some of those buffer size calculations to overflow, causing it to perform a grub_malloc() operation with a smaller size than expected. As a result, the direct_read() will perform a heap based out-of-bounds write during data reading. This flaw may be leveraged to corrupt grub's internal critical data and may result in arbitrary code execution, by-passing secure boot protections.

CVSS 7.8 · High · EPSS 0.3% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • red hat enterprise linux 10

    No fix published

  • red hat enterprise linux 7

    No fix published

  • red hat enterprise linux 8

    No fix published

  • red hat enterprise linux 9

    No fix published

  • red hat openshift container platform 4

    No fix published

  • grub2 Debian:12

    Versions
    • 2.06-13
    • 2.06-13+deb12u1
    Affected ranges
    • ECOSYSTEM: < 2.06-13+deb12u2

    Update to 2.06-13+deb12u2

  • grub2 Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.12-6

    Update to 2.12-6

  • grub2 Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.12-6

    Update to 2.12-6

  • grub2 Ubuntu:Pro:14.04:LTS

    Versions
    • 2.00-19ubuntu2
    • 2.00-19ubuntu3
    • 2.00-19ubuntu4
    • 2.00-20
    • 2.00-21
    • 2.00-22
    • 2.02~beta2-5
    • 2.02~beta2-6
    • 2.02~beta2-7
    • 2.02~beta2-8
    • 2.02~beta2-9
    • 2.02~beta2-9ubuntu1
    • 2.02~beta2-9ubuntu1.1
    • 2.02~beta2-9ubuntu1.2
    • 2.02~beta2-9ubuntu1.3
    • 2.02~beta2-9ubuntu1.4
    • 2.02~beta2-9ubuntu1.5
    • 2.02~beta2-9ubuntu1.6
    • 2.02~beta2-9ubuntu1.7
    • 2.02~beta2-9ubuntu1.8
    • 2.02~beta2-9ubuntu1.11
    • 2.02~beta2-9ubuntu1.12
    • 2.02~beta2-9ubuntu1.14
    • 2.02~beta2-9ubuntu1.15
    • 2.02~beta2-9ubuntu1.16
    • 2.02~beta2-9ubuntu1.17
    • 2.02~beta2-9ubuntu1.20
    • 2.02~beta2-9ubuntu1.21
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:Pro:14.04:LTS

    Versions
    • 1.22
    • 1.23
    • 1.24
    • 1.25
    • 1.26
    • 1.27
    • 1.30
    • 1.31
    • 1.32
    • 1.33
    • 1.34
    • 1.34.1
    • 1.34.2
    • 1.34.3
    • 1.34.4
    • 1.34.5
    • 1.34.6
    • 1.34.7
    • 1.34.8
    • 1.34.9
    • 1.34.13
    • 1.34.14
    • 1.34.16
    • 1.34.17
    • 1.34.18
    • 1.34.20
    • 1.34.22
    • 1.34.24
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:16.04:LTS

    Versions
    • 1.55
    • 1.56
    • 1.57
    • 1.58
    • 1.59
    • 1.61
    • 1.62
    • 1.63
    • 1.64
    • 1.65
    • 1.66
    • 1.66.1
    • 1.66.2
    • 1.66.6
    • 1.66.7
    • 1.66.8
    • 1.66.9
    • 1.66.11
    • 1.66.12
    • 1.66.14
    • 1.66.15
    • 1.66.16
    • 1.66.17
    • 1.66.18
    • 1.66.19
    • 1.66.20
    • 1.66.21
    • 1.66.22
    • 1.66.23
    • 1.66.26
    • 1.66.27
    • 1.66.28
    • 1.66.29
    • 1.167~16.04.1
    • 1.167~16.04.2
    • 1.167~16.04.4
    • 1.167~16.04.6
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-unsigned Ubuntu:16.04:LTS

    Versions
    • 2.04-1ubuntu44
    • 2.04-1ubuntu44.1
    • 2.04-1ubuntu44.1.2
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:18.04:LTS

    Versions
    • 1.85
    • 1.86
    • 1.87
    • 1.89
    • 1.91
    • 1.92
    • 1.93
    • 1.93.1
    • 1.93.2
    • 1.93.3
    • 1.93.4
    • 1.93.5
    • 1.93.7
    • 1.93.8
    • 1.93.10
    • 1.93.11
    • 1.93.13
    • 1.93.14
    • 1.93.15
    • 1.93.16
    • 1.93.18
    • 1.93.19
    • 1.93.20
    • 1.93.21
    • 1.93.22
    • 1.93.24
    • 1.167~18.04.1
    • 1.167~18.04.3
    • 1.167~18.04.5
    • 1.173.2~18.04.1
    • 1.187.2~18.04.1
    • 1.187.3~18.04.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-unsigned Ubuntu:18.04:LTS

    Versions
    • 2.04-1ubuntu44
    • 2.04-1ubuntu44.1
    • 2.04-1ubuntu44.1.2
    • 2.04-1ubuntu47.4
    • 2.06-2ubuntu14
    • 2.06-2ubuntu14.1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:20.04:LTS

    Versions
    • 1.128
    • 1.129
    • 1.130
    • 1.131
    • 1.133
    • 1.134
    • 1.135
    • 1.136
    • 1.137
    • 1.138
    • 1.139
    • 1.140
    • 1.141
    • 1.142
    • 1.142.1
    • 1.142.3
    • 1.142.4
    • 1.142.5
    • 1.142.6
    • 1.142.8
    • 1.142.9
    • 1.142.10
    • 1.142.11
    • 1.167
    • 1.167.2
    • 1.173.2~20.04.1
    • 1.173.4
    • 1.187.2~20.04.2
    • 1.187.3~20.04.1
    • 1.187.4~20.04.1
    • 1.187.6~20.04.1
    • 1.187.12~20.04
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-unsigned Ubuntu:20.04:LTS

    Versions
    • 2.04-1ubuntu44
    • 2.04-1ubuntu44.2
    • 2.04-1ubuntu47.4
    • 2.04-1ubuntu47.5
    • 2.06-2ubuntu14
    • 2.06-2ubuntu14.1
    • 2.06-2ubuntu14.2
    • 2.06-2ubuntu14.4
    • 2.06-2ubuntu14.8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:22.04:LTS

    Versions
    • 1.173
    • 1.174
    • 1.176
    • 1.177
    • 1.178
    • 1.179
    • 1.180
    • 1.182~22.04.1
    • 1.187.2
    • 1.187.3~22.04.1
    • 1.187.4~22.04.1
    • 1.187.6
    • 1.187.12
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-unsigned Ubuntu:22.04:LTS

    Versions
    • 2.04-1ubuntu47
    • 2.04-1ubuntu48
    • 2.06-2ubuntu3
    • 2.06-2ubuntu4
    • 2.06-2ubuntu5
    • 2.06-2ubuntu6
    • 2.06-2ubuntu7
    • 2.06-2ubuntu10
    • 2.06-2ubuntu14
    • 2.06-2ubuntu14.1
    • 2.06-2ubuntu14.2
    • 2.06-2ubuntu14.4
    • 2.06-2ubuntu14.8
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:24.04:LTS

    Versions
    • 1.197
    • 1.199
    • 1.201
    • 1.202
    • 1.202.2
    • 1.202.5
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-unsigned Ubuntu:24.04:LTS

    Versions
    • 2.12~rc1-10ubuntu4
    • 2.12~rc1-12ubuntu2
    • 2.12-1ubuntu1
    • 2.12-1ubuntu7
    • 2.12-1ubuntu7.1
    • 2.12-1ubuntu7.3
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:25.10

    Versions
    • 1.212
    • 1.213
    • 1.214
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-unsigned Ubuntu:25.10

    Versions
    • 2.12-5ubuntu11
    • 2.14~git20250718.0e36779-1ubuntu1
    • 2.14~git20250718.0e36779-1ubuntu4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-signed Ubuntu:26.10

    Versions
    • 1.215
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

  • grub2-unsigned Ubuntu:26.10

    Versions
    • 2.14-2ubuntu1
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

Check your server →