CVE-2021-3403 is a double-free vulnerability in ytnef 1.9.3, specifically within the TNEFSubjectHandler function, affecting various Fedora and Red Hat Enterprise Linux distributions. This flaw allows a remote attacker to trigger a denial-of-service and potentially achieve code execution by providing a specially crafted file. Rated with a CVSS score of 7.8 (High), it requires user interaction (UI:R) and local access (AV:L) but has a low attack complexity (AC:L), leading to high confidentiality, integrity, and availability impacts. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
1.9.3CPE matchmatch criteria | cpe:2.3:a:ytnef_project:ytnef:1.9.3:*:*:*:*:*:*:* | ||
7.0CPE matchmatch criteria | cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.