CVE-2017-9146 Information

Description

The TNEFFillMapi function in lib/ytnef.c in libytnef in ytnef through 1.9.2 does not ensure a nonzero count value before a certain memory allocation which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted tnef file.

CVSS Vector

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

Reference

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862707 https://github.com/Yeraze/ytnef/issues/47 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/ https://usn.ubuntu.com/3667-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8