by Kastro
Paper/Archive/CVE-2020-28024

CVE-2020-28024

mitre — Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because s…

EPSS 4%CVSS 9.8
critical.is priorityof 100
48
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 90.9.909 × 2018.2No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

Exim 4 before 4.94.2 allows Buffer Underwrite that may result in unauthenticated remote attackers executing arbitrary commands, because smtp_ungetc was only intended to push back characters, but can actually push back non-character error codes such as EOF.

Affected

ProductAffectedFixed inSource
n/an/a–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refexim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28024-UNGET.txt