CVE-2020-28017: Buffer Overflow
Published May 6, 2021
·Updated
Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow in receiveaddrecipient via an e-mail message with fifty million recipients. NOTE: remote exploitation may be difficult because of resource consumption.
Affected Software
1 affected component
Exim Exim<4.94.1
Event History
May 6, 2021
CVE Published
via MITRE·03:55 AM
Data Sourced
via MITRE·03:55 AM
Description
Frequently Asked Questions
1
What is CVE-2020-28017?
CVE-2020-28017 is a vulnerability in Exim 4 before version 4.94.2 that allows an integer overflow to a buffer overflow in the receive_add_recipient function.
2
What is the severity of CVE-2020-28017?
CVE-2020-28017 has a severity rating of 9.8, which is considered critical.
3
How does CVE-2020-28017 affect Exim?
CVE-2020-28017 affects Exim 4 versions before 4.94.2.
4
How can CVE-2020-28017 be exploited?
Exploiting CVE-2020-28017 remotely may be difficult due to resource consumption.
5
Where can I find more information about CVE-2020-28017?
More information about CVE-2020-28017 can be found at https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28017-RCPTL.txt.