CVE-2022-3775
Grub2 Unicode Sequence Font Heap Corruption
Description
When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded.
INFO
Published Date :
Dec. 19, 2022, 8:15 p.m.
Last Modified :
Nov. 25, 2023, 12:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.2
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2022-3775 has a 17 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-3775.
| URL | Resource |
|---|---|
| https://access.redhat.com/security/cve/cve-2022-3775 | Third Party Advisory |
| https://security.gentoo.org/glsa/202311-14 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
shim-review but not forked to be able to use LFS
Dockerfile Shell
None
Dockerfile
None
Dockerfile Makefile
None
Dockerfile
None
None
Dockerfile Shell
None
Dockerfile
Repository for all information needed for shim-review
Dockerfile
Action1 API cmdlets for easy creation of API scripts
PowerShell
shim-review for Navix
Dockerfile
A centralized repository of standalone security patches for open source libraries.
appsec backport cve devsecops fix hotfix open-source patch protection remediation seal security update upgrade vulnerability
None
None
Dockerfile Makefile
None
Dockerfile
None
Dockerfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-3775 vulnerability anywhere in the article.
-
The Cyber Express
Microsoft Tackles 9 Zero-Day Exploits in August 2024 Patch Tuesday Update
Microsoft has released its August 2024 Patch Tuesday update, addressing multiple vulnerabilities across its software ecosystem. This month’s update features fixes for a total of 90 vulnerabilities, in ... Read more
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TheCyberThrone
Microsoft Patch Tuesday-August 2024
Microsoft patched 90 CVEs in its August 2024 Patch Tuesday release, with seven rated critical, 82 rated as important, and one rated as moderate.This includes updates for vulnerabilities in Microsoft O ... Read more
The following table lists the changes that have been made to the
CVE-2022-3775 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 25, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://security.gentoo.org/glsa/202311-14 [No types assigned] -
Initial Analysis by [email protected]
Dec. 28, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H Changed Reference Type https://access.redhat.com/security/cve/cve-2022-3775 No Types Assigned https://access.redhat.com/security/cve/cve-2022-3775 Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* versions up to (including) 2.06 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-3775 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-3775
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.12886
percentile