CVE-2020-3811: qmail-verify as used in netqmail 1.06 is prone to a mail-address verification bypass vulnerability

High severity · published May 26, 2020

CVE-2020-3811

qmail-verify as used in netqmail 1.06 is prone to a mail-address verification bypass vulnerability

7.5

CVSS

1.8%

EPSS

On KEV

Description

qmail-verify as used in netqmail 1.06 is prone to a mail-address verification bypass vulnerability.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

None

Integrity

High

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)1.8% · higher than 79% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Debian Linux · Debian

9.0; 10.0 · source: NVD

Netqmail · Netqmail

1.06 · source: NVD

Ubuntu Linux · Canonical

20.04 · source: NVD

Affected product

Ubuntu Linux

Canonical

All Ubuntu Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-3811

CVE.org

https://www.cve.org/CVERecord?id=CVE-2020-3811

Issue Tracking

https://bugs.debian.org/961060

Mailing List

https://lists.debian.org/debian-lts-announce/2020/06/msg00002.html

Third Party Advisory

https://usn.ubuntu.com/4556-1/

Third Party Advisory

https://www.debian.org/security/2020/dsa-4692

Exploit

https://www.openwall.com/lists/oss-security/2020/05/19/8