CVE-2020-28009

high

Description

Exim 4 before 4.94.2 allows Integer Overflow to Buffer Overflow because get_stdinput allows unbounded reads that are accompanied by unbounded increases in a certain size variable. NOTE: exploitation may be impractical because of the execution time needed to overflow (multiple days).

References

https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective

https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28009-STDIN.txt

Details

Source: Mitre, NVD

Published: 2021-05-06

Updated: 2021-05-10

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H