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CVE-2020-28019

Good to know:

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Date: May 6, 2021

Exim 4 before 4.94.2 has Improper Initialization that can lead to recursion-based stack consumption or other consequences. This occurs because use of certain getc functions is mishandled when a client uses BDAT instead of DATA.

Language: C

Severity Score

Related Resources (5)

https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28019-BDATA.txt
https://security.alpinelinux.org/vuln/CVE-2020-28019
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-28019
https://nvd.nist.gov/vuln/detail/CVE-2020-28019
https://www.mend.io/vulnerability-database/CVE-2020-28019

Severity Score

Weakness Type (CWE)

Improper Initialization

CWE-665

Top Fix

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CVSS v3.1

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

CVSS v2

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

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