CVE-2020-28018 Information

Description

Exim 4 before 4.94.2 allows Use After Free in smtp_reset in certain situations that may be common for builds with OpenSSL.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28018-OCORK.txt http://www.openwall.com/lists/oss-security/2021/05/11/5 http://www.openwall.com/lists/oss-security/2021/05/11/6 http://www.openwall.com/lists/oss-security/2021/05/11/17 http://www.openwall.com/lists/oss-security/2021/05/11/15 http://www.openwall.com/lists/oss-security/2021/05/11/14 http://www.openwall.com/lists/oss-security/2021/05/12/2 http://www.openwall.com/lists/oss-security/2021/05/12/3

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