CVE Vulnerability

CVE-2019-18849

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/verdammelt/tnef/pull/40 Exploit Patch
https://github.com/verdammelt/tnef/compare/1.4.17...1.4.18 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00035.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RMKFSHPMOZL7MDWU5RYOTIBTRWSZ4Z6X/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W7CPKBW4QZ4VIY4UXIUVUSHRJ4R2FROE/ Mailing List Third Party Advisory
https://usn.ubuntu.com/4524-1/ Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00025.html Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:tnef_project:tnef:*:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Information

Published : 2019-11-11 04:15

Updated : 2022-04-22 07:57

NVD link : CVE-2019-18849

Mitre link : CVE-2019-18849

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read