CVE-2020-15707
CVE-2020-15707 · GRUB2 contained integer overflows when handling the initrd command, leading to a heap-based buffer overflow.
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
Integer overflows were discovered in the functions grub_cmd_initrd and grub_initrd_init in the efilinux component of GRUB2, as shipped in Debian, Red Hat, and Ubuntu (the functionality is not included in GRUB2 upstream), leading to a heap-based buffer overflow. These could be triggered by an extremely large number of arguments to the initrd command on 32-bit architectures, or a crafted filesystem with very large files on any architecture. An attacker could use this to execute arbitrary code and bypass UEFI Secure Boot restrictions. This issue affects GRUB2 version 2.04 and prior versions.
CVSS 5.7 · Moyenne · EPSS 1,6% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system
Produits et versions concernés
grub2 in ubuntu
- Versions du logiciel
- ≥ 20.04 LTS, < 2.04-1ubuntu26.1: Concernée (custom)
- ≥ 18.04 LTS, < 2.02-2ubuntu8.16: Concernée (custom)
- ≥ 16.04 LTS, < 2.02~beta2-36ubuntu3.26: Concernée (custom)
- ≥ 14.04 ESM, < 2.02~beta2-9ubuntu1.20: Concernée (custom)
Aucun correctif publié
grub2 Debian:12
- Plages de versions concernées
- ECOSYSTEM: < 2.04-9
Mettez à jour vers 2.04-9
grub2 Debian:13
- Plages de versions concernées
- ECOSYSTEM: < 2.04-9
Mettez à jour vers 2.04-9
grub2 Debian:14
- Plages de versions concernées
- ECOSYSTEM: < 2.04-9
Mettez à jour vers 2.04-9
grub2 Ubuntu:Pro:14.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 2.02~beta2-9ubuntu1.20
Mettez à jour vers 2.02~beta2-9ubuntu1.20
grub2-signed Ubuntu:Pro:14.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 1.34.22
Mettez à jour vers 1.34.22
grub2 Ubuntu:16.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 2.02~beta2-36ubuntu3.26
Mettez à jour vers 2.02~beta2-36ubuntu3.26
grub2-signed Ubuntu:16.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 1.66.26
Mettez à jour vers 1.66.26
grub2-unsigned Ubuntu:16.04:LTS
- Versions du logiciel
- 2.04-1ubuntu44
- 2.04-1ubuntu44.1
- 2.04-1ubuntu44.1.2
- Plages de versions concernées
- ECOSYSTEM: (−∞, +∞)
Aucun correctif publié
grub2 Ubuntu:18.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 2.02-2ubuntu8.16
Mettez à jour vers 2.02-2ubuntu8.16
grub2-signed Ubuntu:18.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 1.93.18
Mettez à jour vers 1.93.18
grub2 Ubuntu:20.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 2.04-1ubuntu26.1
Mettez à jour vers 2.04-1ubuntu26.1
grub2-signed Ubuntu:20.04:LTS
- Versions du logiciel
- 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
- Plages de versions concernées
- ECOSYSTEM: < 1.142.3
Mettez à jour vers 1.142.3
Sources originales
- https://www.eclypsium.com/2020/07/29/theres-a-hole-in-the-boot/
- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/GRUB2SecureBootBypass
- http://ubuntu.com/security/notices/USN-4432-1
- https://www.debian.org/security/2020-GRUB-UEFI-SecureBoot
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/ADV200011
- https://access.redhat.com/security/vulnerabilities/grub2bootloader
- https://www.suse.com/c/suse-addresses-grub2-secure-boot-issue/
- https://www.suse.com/support/kb/doc/?id=000019673
- https://www.openwall.com/lists/oss-security/2020/07/29/3
- https://lists.gnu.org/archive/html/grub-devel/2020-07/msg00034.html
- https://www.debian.org/security/2020/dsa-4735
- http://www.openwall.com/lists/oss-security/2020/07/29/3
- https://security.netapp.com/advisory/ntap-20200731-0008/
- https://usn.ubuntu.com/4432-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
- https://security.gentoo.org/glsa/202104-05
- https://nvd.nist.gov/vuln/detail/CVE-2020-15707