Out-of-bounds Read Vulnerability in Exim Mail Server
CVE-2020-28023

7.5HIGH

Key Information:

Vendor

Exim

Status
Exim
Vendor
CVE Published:
6 May 2021

What is CVE-2020-28023?

The Exim Mail Server version prior to 4.94.2 is susceptible to an out-of-bounds read vulnerability. This flaw occurs within the smtp_setup_msg function, potentially exposing sensitive information from the process memory to an unauthenticated SMTP client. This presents a risk of data leakage which could compromise system security. It is imperative for administrators to upgrade to the latest version to mitigate this vulnerability and enhance the overall security posture of their mail systems.

References

https://www.exim.org/static/doc/security/CVE-2020-qualys/...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.