CVE-2020-3812
Publication date 26 May 2020
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
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.
Status
Package | Ubuntu Release | Status |
---|---|---|
netqmail | ||
20.04 LTS focal |
Fixed 1.06-6.2~deb10u1build0.20.04.1
|
|
18.04 LTS bionic |
Fixed 1.06-6.2~deb10u1build0.18.04.1
|
|
16.04 LTS xenial |
Fixed 1.06-6.2~deb10u1build0.16.04.1
|
|
14.04 LTS trusty |
Fixed 1.06-6.2~deb10u1build0.14.04.1+esm1
|
Get expanded security coverage with Ubuntu Pro
Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.
Get Ubuntu ProSeverity score breakdown
Parameter | Value |
---|---|
Base score | 5.5 · Medium |
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 |
References
Related Ubuntu Security Notices (USN)
- USN-4556-1
- netqmail vulnerabilities
- 29 September 2020
- USN-4621-1
- netqmail vulnerabilities
- 5 November 2020