CVE-2019-18849

medium

Description

In tnef before 1.4.18, an attacker may be able to write to the victim's .ssh/authorized_keys file via an e-mail message with a crafted winmail.dat application/ms-tnef attachment, because of a heap-based buffer over-read involving strdup.

References

https://usn.ubuntu.com/4524-1/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W7CPKBW4QZ4VIY4UXIUVUSHRJ4R2FROE/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMKFSHPMOZL7MDWU5RYOTIBTRWSZ4Z6X/

https://lists.debian.org/debian-lts-announce/2021/08/msg00025.html

https://lists.debian.org/debian-lts-announce/2019/11/msg00035.html

https://github.com/verdammelt/tnef/pull/40

https://github.com/verdammelt/tnef/compare/1.4.17...1.4.18

Details

Source: Mitre, NVD

Published: 2019-11-11

Updated: 2023-11-07

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H