PT-2020-3626 · Qmail+2 · Netqmail+2

Georgi Guninski · Published 2020-05-20 · Updated 2022-04-28 · CVE-2020-3811

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:C/A:N

Name of the Vulnerable Software and Affected Versions netqmail version 1.06

Description The issue is related to a lack of input validation in the qmail-verify module of the netqmail email client. This can be exploited by a remote attacker to compromise data integrity. The vulnerability allows for a mail-address verification bypass.

Recommendations For netqmail version 1.06, consider disabling the qmail-verify module until a patch is available to prevent potential exploitation. Restrict access to the mail-address verification feature to minimize the risk of data integrity compromise.

Exploit

Fix

Incorrect Authorization

Improper Initialization

RCE

Weakness Enumeration

CWE-863

CWE-665

CWE-20

Related Identifiers

BDU:2020-03973

CVE-2020-3811

DLA-2234-1

DSA-4692-1

USN-4556-1

USN-4621-1

Affected Products

Linuxmint

Ubuntu

Netqmail

References · 24

• 🔥 https://openwall.com/lists/oss-security/2020/05/19/8 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-3811 · Security Note
• https://ubuntu.com/security/CVE-2020-3811 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2234-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-3812 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-3811 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-3811 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-3811 · Security Note
• https://osv.dev/vulnerability/DSA-4692-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-3811 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4621-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4556-1 · Vendor Advisory
• https://usn.ubuntu.com/4556-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-4556-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4621-1 · Vendor Advisory