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CVE-2020-14310

CVE-2020-14310

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

There is an issue on grub2 before version 2.06 at function read_section_as_string(). It expects a font name to be at max UINT32_MAX - 1 length in bytes but it doesn't verify it before proceed with buffer allocation to read the value from the font value. An attacker may leverage that by crafting a malicious font file which has a name with UINT32_MAX, leading to read_section_as_string() to an arithmetic overflow, zero-sized allocation and further heap-based buffer overflow.

CVSS 5.7 · Media · EPSS 0,5% · Corrección disponible

Publicación
Actualización

Pila tecnológica: system

Productos y versiones afectados

  • grub2

    Versiones
    • 2.06: Afectada

    Sin corrección publicada

  • grub2 Debian:12

    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.04-9

    Actualiza a 2.04-9

  • grub2 Debian:13

    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.04-9

    Actualiza a 2.04-9

  • grub2 Debian:14

    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.04-9

    Actualiza a 2.04-9

  • grub2 Ubuntu:Pro:14.04:LTS

    Versiones
    • 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
    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.02~beta2-9ubuntu1.20

    Actualiza a 2.02~beta2-9ubuntu1.20

  • grub2-signed Ubuntu:Pro:14.04:LTS

    Versiones
    • 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
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.34.22

    Actualiza a 1.34.22

  • grub2 Ubuntu:16.04:LTS

    Versiones
    • 2.02~beta2-29
    • 2.02~beta2-31
    • 2.02~beta2-31ubuntu1
    • 2.02~beta2-32
    • 2.02~beta2-32ubuntu1
    • 2.02~beta2-35
    • 2.02~beta2-35ubuntu1
    • 2.02~beta2-36
    • 2.02~beta2-36ubuntu1
    • 2.02~beta2-36ubuntu2
    • 2.02~beta2-36ubuntu3
    • 2.02~beta2-36ubuntu3.1
    • 2.02~beta2-36ubuntu3.2
    • 2.02~beta2-36ubuntu3.6
    • 2.02~beta2-36ubuntu3.7
    • 2.02~beta2-36ubuntu3.8
    • 2.02~beta2-36ubuntu3.9
    • 2.02~beta2-36ubuntu3.11
    • 2.02~beta2-36ubuntu3.12
    • 2.02~beta2-36ubuntu3.14
    • 2.02~beta2-36ubuntu3.15
    • 2.02~beta2-36ubuntu3.16
    • 2.02~beta2-36ubuntu3.17
    • 2.02~beta2-36ubuntu3.18
    • 2.02~beta2-36ubuntu3.19
    • 2.02~beta2-36ubuntu3.20
    • 2.02~beta2-36ubuntu3.21
    • 2.02~beta2-36ubuntu3.22
    • 2.02~beta2-36ubuntu3.23
    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.02~beta2-36ubuntu3.26

    Actualiza a 2.02~beta2-36ubuntu3.26

  • grub2-signed Ubuntu:16.04:LTS

    Versiones
    • 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
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.66.26

    Actualiza a 1.66.26

  • grub2-unsigned Ubuntu:16.04:LTS

    Versiones
    • 2.04-1ubuntu44
    • 2.04-1ubuntu44.1
    • 2.04-1ubuntu44.1.2
    Intervalos de versiones afectados
    • ECOSYSTEM: (−∞, +∞)

    Sin corrección publicada

  • grub2 Ubuntu:18.04:LTS

    Versiones
    • 2.02~beta3-4ubuntu7
    • 2.02-2ubuntu1
    • 2.02-2ubuntu2
    • 2.02-2ubuntu4
    • 2.02-2ubuntu6
    • 2.02-2ubuntu7
    • 2.02-2ubuntu8
    • 2.02-2ubuntu8.1
    • 2.02-2ubuntu8.2
    • 2.02-2ubuntu8.3
    • 2.02-2ubuntu8.4
    • 2.02-2ubuntu8.6
    • 2.02-2ubuntu8.7
    • 2.02-2ubuntu8.9
    • 2.02-2ubuntu8.10
    • 2.02-2ubuntu8.12
    • 2.02-2ubuntu8.13
    • 2.02-2ubuntu8.14
    • 2.02-2ubuntu8.15
    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.02-2ubuntu8.16

    Actualiza a 2.02-2ubuntu8.16

  • grub2-signed Ubuntu:18.04:LTS

    Versiones
    • 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
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.93.18

    Actualiza a 1.93.18

  • grub2-unsigned Ubuntu:18.04:LTS

    Versiones
    • 2.04-1ubuntu44
    • 2.04-1ubuntu44.1
    • 2.04-1ubuntu44.1.2
    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.04-1ubuntu47.4

    Actualiza a 2.04-1ubuntu47.4

  • grub2 Ubuntu:20.04:LTS

    Versiones
    • 2.04-1ubuntu12
    • 2.04-1ubuntu13
    • 2.04-1ubuntu14
    • 2.04-1ubuntu16
    • 2.04-1ubuntu18
    • 2.04-1ubuntu20
    • 2.04-1ubuntu21
    • 2.04-1ubuntu22
    • 2.04-1ubuntu23
    • 2.04-1ubuntu24
    • 2.04-1ubuntu25
    • 2.04-1ubuntu26
    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.04-1ubuntu26.1

    Actualiza a 2.04-1ubuntu26.1

  • grub2-signed Ubuntu:20.04:LTS

    Versiones
    • 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
    Intervalos de versiones afectados
    • ECOSYSTEM: < 1.142.3

    Actualiza a 1.142.3

  • grub2-unsigned Ubuntu:20.04:LTS

    Versiones
    • 2.04-1ubuntu44
    • 2.04-1ubuntu44.2
    Intervalos de versiones afectados
    • ECOSYSTEM: < 2.04-1ubuntu47.4

    Actualiza a 2.04-1ubuntu47.4

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