UBUNTU-CVE-2015-8370

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Source
https://ubuntu.com/security/CVE-2015-8370
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-8370.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2015-8370
Upstream
Downstream
Related
Published
2015-12-11T00:00:00Z
Modified
2025-09-08T16:43:29Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Multiple integer underflows in Grub2 1.98 through 2.02 allow physically proximate attackers to bypass authentication, obtain sensitive information, or cause a denial of service (disk corruption) via backspace characters in the (1) grubusernameget function in grub-core/normal/auth.c or the (2) grubpasswordget function in lib/crypto.c, which trigger an "Off-by-two" or "Out of bounds overwrite" memory error.

References

Affected packages

Ubuntu:14.04:LTS / grub2

Package

Name
grub2
Purl
pkg:deb/ubuntu/grub2@2.02~beta2-9ubuntu1.6?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.02~beta2-9ubuntu1.6

Affected versions

2.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "grub-common",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-coreboot",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-coreboot-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-amd64",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-amd64-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-arm",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-arm-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-arm64",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-arm64-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-ia32",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-efi-ia32-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-emu",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-firmware-qemu",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-ieee1275",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-ieee1275-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-linuxbios",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-pc",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-pc-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-rescue-pc",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-theme-starfield",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-uboot",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-uboot-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-xen",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub-xen-bin",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub2",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        },
        {
            "binary_name": "grub2-common",
            "binary_version": "2.02~beta2-9ubuntu1.6"
        }
    ]
}