SB2018092103 - Amazon Linux AMI update for procmail



SB2018092103 - Amazon Linux AMI update for procmail

Published: September 21, 2018 Updated: April 14, 2026

Security Bulletin ID SB2018092103
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Heap-based buffer overflow (CVE-ID: CVE-2017-16844)

CWE-ID: CWE-122 - Heap-based Buffer Overflow

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to boundary error in the loadbuf() function in formisc.c in formail in procmail 3.22. A remote attacker can execute arbitrary code on the target system via a specially crafted e-mail message because of a hardcoded realloc size.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.