openSUSE 15 Security Update : fetchmail (openSUSE-SU-2021:4018-1)

medium Nessus Plugin ID 156154

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Synopsis

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

Description

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:4018-1 advisory.

- report_vbuild in report.c in Fetchmail before 6.4.20 sometimes omits initialization of the vsnprintf va_list argument, which might allow mail servers to cause a denial of service or possibly have unspecified other impact via long error messages. NOTE: it is unclear whether use of Fetchmail on any realistic platform results in an impact beyond an inconvenience to the client user. (CVE-2021-36386)

- Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH. (CVE-2021-39272)

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 fetchmail and / or fetchmailconf packages.

See Also

https://bugzilla.suse.com/1152964

https://bugzilla.suse.com/1174075

https://bugzilla.suse.com/1181400

https://bugzilla.suse.com/1188875

https://bugzilla.suse.com/1190069

https://bugzilla.suse.com/1190896

http://www.nessus.org/u?2a822b03

https://www.suse.com/security/cve/CVE-2021-36386

https://www.suse.com/security/cve/CVE-2021-39272

Plugin Details

Severity: Medium

ID: 156154

File Name: openSUSE-2021-4018.nasl

Version: 1.2

Type: local

Agent: unix

Published: 12/17/2021

Updated: 12/17/2021

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

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

CVSS Score Source: CVE-2021-39272

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:15.3, p-cpe:/a:novell:opensuse:fetchmail, p-cpe:/a:novell:opensuse:fetchmailconf

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/14/2021

Vulnerability Publication Date: 7/30/2021

Reference Information

CVE: CVE-2021-36386, CVE-2021-39272