CVE-2020-3812
Published: 26 May 2020
qmail-verify as used in netqmail 1.06 is prone to an information disclosure vulnerability. A local attacker can test for the existence of files and directories anywhere in the filesystem because qmail-verify runs as root and tests for the existence of files in the attacker's home directory, without dropping its privileges first.
From the Ubuntu Security Team
It was discovered that netqmail did not properly handle certain input when validating email addresses. An attacker could use this vulnerability to cause netqmail to disclose sensitive information.
Priority
Status
Package | Release | Status |
---|---|---|
netqmail Launchpad, Ubuntu, Debian |
bionic |
Released
(1.06-6.2~deb10u1build0.18.04.1)
|
eoan |
Ignored
(end of life)
|
|
focal |
Released
(1.06-6.2~deb10u1build0.20.04.1)
|
|
groovy |
Does not exist
|
|
upstream |
Released
(1.06-6.2, 1.6-6.2~deb10u1, 1.6-6.2~deb9u1, 1.6-6.2~deb8u1,,,)
|
|
xenial |
Released
(1.06-6.2~deb10u1build0.16.04.1)
|
|
trusty |
Released
(1.06-6.2~deb10u1build0.14.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |