CVE-2019-18849 describes a heap-based buffer over-read vulnerability in tnef versions prior to 1.4.18, affecting products like Canonical, Debian, Fedora, and tnef_project. This flaw allows an attacker to potentially write to a victim's .ssh/authorized_keys file by sending a specially crafted email containing a winmail.dat attachment. Rated as Medium severity (CVSS 5.5), the attack requires user interaction (UI:R) and local access (AV:L), with a high impact on availability (A:H) but no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.4.18CPE matchmatch criteria | cpe:2.3:a:tnef_project:tnef:*:*:*:*:*:*:*:* | ||
30CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* | ||
31CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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