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CVE-2020-28018

Good to know:

Date: May 6, 2021

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

Language: C

Severity Score

9.8

Related Resources (5)

Url: http://www.openwall.com/lists/oss-security/2021/05/11/15

Url: http://www.openwall.com/lists/oss-security/2021/05/11/14

Url: https://security.alpinelinux.org/vuln/CVE-2020-28018

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-28018

Url: https://www.mend.io/vulnerability-database/CVE-2020-28018

Severity Score

9.8

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

Upgrade Version

Upgrade to version exim-4.94.2

CVSS v3.1

Base Score:	9.8
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.5
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	PARTIAL
Availability (A):	PARTIAL
Additional information:

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