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CVE-2020-3812

Date: May 26, 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.

Severity Score

Related Resources (9)

https://www.openwall.com/lists/oss-security/2020/05/19/8
https://bugs.debian.org/961060
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-3812
https://usn.ubuntu.com/4556-1/
https://nvd.nist.gov/vuln/detail/CVE-2020-3812
https://www.debian.org/security/2020/dsa-4692
https://security-tracker.debian.org/tracker/CVE-2020-3812
https://lists.debian.org/debian-lts-announce/2020/06/msg00002.html
https://www.mend.io/vulnerability-database/CVE-2020-3812

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Improper Privilege Management

CWE-269

CVSS v3

Base Score:
Attack Vector (AV):
Attack Complexity (AC):
Privileges Required (PR):
User Interaction (UI):
Scope (S):
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE

CVSS v2

Base Score:
Access Vector (AV):
Access Complexity (AC):
Authentication (AU):
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH
Additional information:

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