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CVE-2020-28023

Good to know:

Date: May 5, 2021

Exim 4 before 4.94.2 allows Out-of-bounds Read. smtp_setup_msg may disclose sensitive information from process memory to an unauthenticated SMTP client.

Language: C

Severity Score

7.5

Related Resources (6)

Url: https://security-tracker.debian.org/tracker/CVE-2020-28023

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-28023

Url: https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28023-SCHAD.txt

Url: https://security.alpinelinux.org/vuln/CVE-2020-28023

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-28023

Url: https://www.mend.io/vulnerability-database/CVE-2020-28023

Severity Score

7.5

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

Top Fix

Upgrade Version

Upgrade to version exim-4.94.2

CVSS v3.1

Base Score:	7.5
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

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