- Description
- A flaw was found in grub2. During the network boot process, when trying to search for the configuration file, grub copies data from a user controlled environment variable into an internal buffer using the grub_strcpy() function. During this step, it fails to consider the environment variable length when allocating the internal buffer, resulting in an out-of-bounds write. If correctly exploited, this issue may result in remote code execution through the same network segment grub is searching for the boot information, which can be used to by-pass secure boot protections.
- Source
- secalert@redhat.com
- NVD status
- Received
CVSS 3.1
- Type
- Primary
- Base score
- 7.6
- Impact score
- 6
- Exploitability score
- 1
- Vector string
- CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
- Severity
- HIGH
- secalert@redhat.com
- CWE-787
Hype score is a measure of social media activity compared against trending CVEs from the past 12 months. Max score 100.
- Hype score
1