Out-of-Bounds Write Vulnerability in Exim Mail Transfer Agent
CVE-2020-28016

7.8HIGH

Key Information:

Vendor

Exim

Status
Exim
Vendor
CVE Published:
6 May 2021

What is CVE-2020-28016?

An out-of-bounds write vulnerability exists in Exim, specifically in versions prior to 4.94.2, where mishandling of the '-F ''' option in the parse_fix_phrase function can lead to potential exploitation. This flaw allows attackers to write outside the allocated buffer boundaries, which could result in unexpected behavior or data corruption.

References

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

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2020-28016 : Out-of-Bounds Write Vulnerability in Exim Mail Transfer Agent