Rapid7 Vulnerability & Exploit Database

CentOS Linux: CVE-2022-2601: Moderate: grub2 security update (CESA-2024:2002)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

CentOS Linux: CVE-2022-2601: Moderate: grub2 security update (CESA-2024:2002)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
12/14/2022
Created
01/13/2023
Added
01/12/2023
Modified
04/24/2024

Description

A buffer overflow was found in grub_font_construct_glyph(). A malicious crafted pf2 font can lead to an overflow when calculating the max_glyph_size value, allocating a smaller than needed buffer for the glyph, this further leads to a buffer overflow and a heap based out-of-bounds write. An attacker may use this vulnerability to circumvent the secure boot mechanism.

Solution(s)

  • centos-upgrade-grub2
  • centos-upgrade-grub2-common
  • centos-upgrade-grub2-debuginfo
  • centos-upgrade-grub2-efi-aa64-modules
  • centos-upgrade-grub2-efi-ia32
  • centos-upgrade-grub2-efi-ia32-cdboot
  • centos-upgrade-grub2-efi-ia32-modules
  • centos-upgrade-grub2-efi-x64
  • centos-upgrade-grub2-efi-x64-cdboot
  • centos-upgrade-grub2-efi-x64-modules
  • centos-upgrade-grub2-pc
  • centos-upgrade-grub2-pc-modules
  • centos-upgrade-grub2-ppc-modules
  • centos-upgrade-grub2-ppc64-modules
  • centos-upgrade-grub2-ppc64le-modules
  • centos-upgrade-grub2-tools
  • centos-upgrade-grub2-tools-extra
  • centos-upgrade-grub2-tools-minimal

References

  • CVE-2022-2601

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;