Vulnerability Details : CVE-2021-3402

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
Published 2021-05-14 21:15:08
Updated 2021-05-24 16:30:27
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of serviceInformation leak

Exploit prediction scoring system (EPSS) score for CVE-2021-3402

EPSS FAQ
0.20%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-3402

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.4
 MEDIUM AV:N/AC:L/Au:N/C:P/I:N/A:P
10.0
4.9
 NIST
9.1
 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
3.9
5.2
 NIST

CWE ids for CVE-2021-3402

  • The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
    Assigned by: secalert@redhat.com (Primary)

References for CVE-2021-3402

Products affected by CVE-2021-3402

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