GLSA-202209-14 : Fetchmail: Multiple Vulnerabilities

medium Nessus Plugin ID 165440

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Description

The remote host is affected by the vulnerability described in GLSA-202209-14 (Fetchmail: Multiple Vulnerabilities)

- 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 these issues but has instead relied only on the application's self-reported version number.

Solution

All Fetchmail users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose >=net-mail/fetchmail-6.4.22

Plugin Details

Severity: Medium

ID: 165440

File Name: gentoo_GLSA-202209-14.nasl

Version: 1.2

Type: local

Family: Gentoo Local Security Checks

Published: 9/25/2022

Updated: 9/25/2022

Supported Sensors: 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: p-cpe:/a:gentoo:linux:fetchmail, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Ease: No known exploits are available

Patch Publication Date: 9/25/2022

Vulnerability Publication Date: 7/30/2021

Reference Information

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

Detections

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