CVE-2020-28013

Description

Exim 4 before 4.94.2 allows Heap-based Buffer Overflow because it mishandles "-F '.('" on the command line, and thus may allow privilege escalation from any user to root. This occurs because of the interpretation of negative sizes in strncpy.

Category

7.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory exim.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28013-PFPSN.txt vendor advisory

Frequently Asked Questions

What is the severity of CVE-2020-28013?
CVE-2020-28013 has been scored as a high severity vulnerability.
How to fix CVE-2020-28013?
To fix CVE-2020-28013, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-28013 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-28013 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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