Ubuntu 16.04 LTS / 18.04 LTS : netqmail vulnerabilities (USN-4621-1)

Medium Nessus Plugin ID 142500

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VPR Score: 6.2

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4621-1 advisory.

- Integer overflow in the stralloc_readyplus function in qmail, when running on 64 bit platforms with a large amount of virtual memory, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large SMTP request. (CVE-2005-1513)

- commands.c in qmail, when running on 64 bit platforms with a large amount of virtual memory, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a long SMTP command without a space character, which causes an array to be referenced with a negative index. (CVE-2005-1514)

- Integer signedness error in the qmail_put and substdio_put functions in qmail, when running on 64 bit platforms with a large amount of virtual memory, allows remote attackers to cause a denial of service and possibly execute arbitrary code via a large number of SMTP RCPT TO commands. (CVE-2005-1515)

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

- 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. (CVE-2020-3812)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected qmail and / or qmail-uids-gids packages.

See Also

https://ubuntu.com/security/notices/USN-4621-1

Plugin Details

Severity: Medium

ID: 142500

File Name: ubuntu_USN-4621-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/11/06

Updated: 2020/11/24

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 6.2

CVSS Score Source: CVE-2020-3811

CVSS v2.0

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:qmail, p-cpe:/a:canonical:ubuntu_linux:qmail-uids-gids

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2020/11/05

Vulnerability Publication Date: 2005/05/11

Reference Information

CVE: CVE-2005-1513, CVE-2005-1514, CVE-2005-1515, CVE-2020-3811, CVE-2020-3812

BID: 89980, 89993, 90000

USN: 4621-1