Improper Initialization in Exim Email Server
CVE-2020-28019

7.5HIGH

Key Information:

Vendor

Exim

Status
Exim
Vendor
CVE Published:
6 May 2021

What is CVE-2020-28019?

Exim versions prior to 4.94.2 are susceptible to a vulnerability due to improper initialization in code handling certain input functions. When clients utilize BDAT instead of the standard DATA command, it can lead to recursion-based stack consumption, resulting in potential service disruption or crashes. The mishandling of functions dealing with client data poses a risk that should be mitigated by updating to a secure version.

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References

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

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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