What is the severity of CVE-2021-3402?

CVE-2021-3402 is classified as a high severity vulnerability due to its potential for causing denial of service and information disclosure.

How do I fix CVE-2021-3402?

To fix CVE-2021-3402, upgrade to libyara version 4.0.4 or later.

What versions are affected by CVE-2021-3402?

CVE-2021-3402 affects all versions of libyara before 4.0.4.

What type of vulnerabilities are present in CVE-2021-3402?

CVE-2021-3402 contains an integer overflow and multiple buffer overflow reads.

What files or components are involved in CVE-2021-3402?

CVE-2021-3402 specifically involves the macho.c file within the libyara/modules/macho directory.

Vulnerability/
CVE-2021-3402

critical

9.1

CWE

190 119

18/2/2021

14/5/2021

3/8/2024

CVE-2021-3402: Integer Overflow

First published: Thu Feb 18 2021(Updated: )

An integer overflow and several buffer overflow reads in libyara/modules/macho/macho.c in YARA v4.0.3 and earlier could allow an attacker to either cause denial of service or information disclosure via a malicious Mach-O file. Affects all versions before libyara 4.0.4

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
redhat/libyara	<4.0.4	4.0.4
VirusTotal yara	<4.0.4
Fedoraproject Fedora	=33
Fedoraproject Fedora	=34

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Reference Links

Frequently Asked Questions

What is the severity of CVE-2021-3402?
CVE-2021-3402 is classified as a high severity vulnerability due to its potential for causing denial of service and information disclosure.
How do I fix CVE-2021-3402?
To fix CVE-2021-3402, upgrade to libyara version 4.0.4 or later.
What versions are affected by CVE-2021-3402?
CVE-2021-3402 affects all versions of libyara before 4.0.4.
What type of vulnerabilities are present in CVE-2021-3402?
CVE-2021-3402 contains an integer overflow and multiple buffer overflow reads.
What files or components are involved in CVE-2021-3402?
CVE-2021-3402 specifically involves the macho.c file within the libyara/modules/macho directory.

agent/type
agent/softwarecombine
agent/first-publish-date
collector/mitre-cve
source/MITRE
agent/last-modified-date
agent/author
agent/references
agent/severity
agent/description
collector/redhat-bugzilla
source/Red Hat
alias/CVE-2021-3402
agent/software-canonical-lookup
agent/weakness
agent/event
agent/trending
agent/source
agent/tags
collector/nvd-index
agent/software-canonical-lookup-request
package-manager/redhat
vendor/virustotal
canonical/virustotal yara
vendor/fedoraproject
canonical/fedoraproject fedora
version/fedoraproject fedora/33
version/fedoraproject fedora/34

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Frequently Asked Questions

What is the severity of CVE-2021-3402?
CVE-2021-3402 is classified as a high severity vulnerability due to its potential for causing denial of service and information disclosure.
How do I fix CVE-2021-3402?
To fix CVE-2021-3402, upgrade to libyara version 4.0.4 or later.
What versions are affected by CVE-2021-3402?
CVE-2021-3402 affects all versions of libyara before 4.0.4.
What type of vulnerabilities are present in CVE-2021-3402?
CVE-2021-3402 contains an integer overflow and multiple buffer overflow reads.
What files or components are involved in CVE-2021-3402?
CVE-2021-3402 specifically involves the macho.c file within the libyara/modules/macho directory.