CVE-2021-3402
CVSS v3
9.1
CRITICAL
EPSS Score
2.2 %
exploit probability, as of 2026-10-19
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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Affected and fixed versions
Packages from OSV.dev and products from the vendors' CSAF advisories.
version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.
Vendor advisories
- CVE-2021-3402 Red Hat Product Security
libyara: Integer overflow in libyara/modules/macho/macho.c via a malicious Mach-O file
Description
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
Technical details
- Published
- 2021-05-14
Frequently asked questions
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