CVE-2018-6789

Public on 2018-02-08

Modified on 2018-03-08

Description

An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.

Severity

Critical

See what this means

CVSS v3 Base Score

8.1

See breakdown

Affected Packages

Platform	Package	Release Date	Advisory
Amazon Linux 1	exim	2018-03-07 21:43	ALAS-2018-970

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	8.1	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	CVSSv3	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	CVSSv2	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Red Hat: CVE-2018-6789 Mitre: CVE-2018-6789 FAQs regarding Amazon Linux ALAS/CVE Severity