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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-3696 Detail

Description

A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it's very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://bugzilla.redhat.com/show_bug.cgi?id=1991686 CVE, Inc., Red Hat Issue Tracking  Third Party Advisory 
https://security.gentoo.org/glsa/202209-12 CVE, Inc., Red Hat Third Party Advisory 
https://security.netapp.com/advisory/ntap-20220930-0001/ CVE, Inc., Red Hat Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-787 Out-of-bounds Write cwe source acceptance level NIST   Red Hat, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-3696
NVD Published Date:
07/06/2022
NVD Last Modified:
11/21/2024
Source:
Red Hat, Inc.