CVE-2020-3812
First published: Tue May 26 2020(Updated: )
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.
Credit: security@debian.org security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Netqmail Netqmail | =1.06 | |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Debian Debian Linux | =10.0 | |
| Canonical Ubuntu Linux | =20.04 | |
| debian/netqmail | 1.06-6.2~deb10u1 | |
| ubuntu/netqmail | <1.06-6.2~ | 1.06-6.2~ |
| ubuntu/netqmail | <1.06-6.2~ | 1.06-6.2~ |
| ubuntu/netqmail | <1.06-6.2<1.6-6.2~<1.6-6.2~<1.6-6.2~ | 1.06-6.2 1.6-6.2~ 1.6-6.2~ 1.6-6.2~ |
| ubuntu/netqmail | <1.06-6.2~ | 1.06-6.2~ |
| ubuntu/netqmail | <1.06-6.2~ | 1.06-6.2~ |
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Reference Links
- https://bugs.debian.org/961060
- https://lists.debian.org/debian-lts-announce/2020/06/msg00002.html
- https://usn.ubuntu.com/4556-1/
- https://www.debian.org/security/2020/dsa-4692
- https://www.openwall.com/lists/oss-security/2020/05/19/8
- https://launchpad.net/bugs/cve/CVE-2020-3812
- https://security-tracker.debian.org/tracker/CVE-2020-3812
- https://www.openwall.com/lists/oss-security/2020/05/198
- https://ubuntu.com/security/notices/USN-4556-1
- https://ubuntu.com/security/notices/USN-4621-1
- https://www.cve.org/CVERecord?id=CVE-2020-3812
- https://nvd.nist.gov/vuln/detail/CVE-2020-3812
- https://ubuntu.com/security/CVE-2020-3812
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID is CVE-2020-3812.
What is the severity of CVE-2020-3812?
The severity of CVE-2020-3812 is medium.
What is the affected software for CVE-2020-3812?
The affected software for CVE-2020-3812 is netqmail 1.06.
How can a local attacker exploit CVE-2020-3812?
A local attacker can exploit CVE-2020-3812 by testing for the existence of files and directories anywhere in the filesystem.
Are there any known references for CVE-2020-3812?
Yes, there are references available for CVE-2020-3812. They can be found at the following links: [reference1](https://bugs.debian.org/961060), [reference2](https://www.debian.org/security/2020/dsa-4692), [reference3](https://www.openwall.com/lists/oss-security/2020/05/19/8).
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