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

CVSS v3.1

9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CVSS v2.0

6.4 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS

2.20% chance of exploitation in the next 30 days, 81th percentile

Published

2021-05-14

Updated

2024-08-03

Proof-of-concept exploits (2)

• https://www.openwall.com/lists/oss-security/2021/01/29/2
• https://www.x41-dsec.de/lab/advisories/x41-2021-001-yara/

References

• CVE Record
• NVD entry

Related

• CVE-2021-33990
• CVE-2021-3405
• CVE-2021-33988
• CVE-2021-34055
• CVE-2021-33983
• CVE-2021-34066