CVE-2021-3402 is a critical vulnerability affecting YARA versions 4.0.3 and earlier, specifically within the libyara/modules/macho/macho.c component. It involves integer and buffer overflow reads that can be triggered by a specially crafted Mach-O file, potentially leading to denial of service or information disclosure. With a CVSS score of 9.1, this vulnerability is easily exploitable over the network with no user interaction, posing a high risk to confidentiality and availability. Despite its critical severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 4.0.4CPE matchmatch criteria | cpe:2.3:a:virustotal:yara:*:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.