CVE-2019-13917 Information

Description

Exim 4.85 through 4.92 (fixed in 4.92.1) allows remote code execution as root in some unusual configurations that use the $sort expansion for items that can be controlled by an attacker (e.g. $local_part or $domain).

CVSS Vector

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

Reference

http://exim.org/static/doc/security/CVE-2019-13917.txt http://www.openwall.com/lists/oss-security/2019/07/26/5 https://seclists.org/bugtraq/2019/Jul/51 https://security.gentoo.org/glsa/201909-06 https://www.debian.org/security/2019/dsa-4488

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8