Debian dla-3205 : inetutils-ftp - security update

high Nessus Plugin ID 168204

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3205 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-3205-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin November 25, 2022 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : inetutils Version : 2:1.9.4-7+deb10u2 CVE ID : CVE-2019-0053 CVE-2021-40491 CVE-2022-39028 Debian Bug : 945861 956084 993476

Several security vulnerabilities were discovered in inetutils, a collection of common network programs.

CVE-2019-0053

inetutils' telnet client doesn't sufficiently validate environment variables, which can lead to stack-based buffer overflows. This issue is limited to local exploitation from restricted shells.

CVE-2021-40491

inetutils' ftp client before 2.2 does not validate addresses returned by PSV/LSPV responses to make sure they match the server address. A malicious server can exploit this flaw to reach services in the client's private network. (This is similar to curl's CVE-2020-8284.)

CVE-2022-39028

inetutils's telnet server through 2.3 has a NULL pointer dereference which a client can trigger by sending 0xff 0xf7 or 0xff 0xf8. In a typical installation, the telnetd application would crash but the telnet service would remain available through inetd. However, if the telnetd application has many crashes within a short time interval, the telnet service would become unavailable after inetd logs a telnet/tcp server failing (looping), service terminated error.

For Debian 10 buster, these problems have been fixed in version 2:1.9.4-7+deb10u2.

We recommend that you upgrade your inetutils packages.

For the detailed security status of inetutils please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/inetutils

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

Tenable has extracted the preceding description block directly from the Debian security advisory.

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

Solution

Upgrade the inetutils-ftp packages.

Plugin Details

Severity: High

ID: 168204

File Name: debian_DLA-3205.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 11/27/2022

Updated: 1/22/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2019-0053

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:inetutils-talk, p-cpe:/a:debian:debian_linux:inetutils-telnetd, cpe:/o:debian:debian_linux:10.0, p-cpe:/a:debian:debian_linux:inetutils-inetd, p-cpe:/a:debian:debian_linux:inetutils-ftpd, p-cpe:/a:debian:debian_linux:inetutils-ftp, p-cpe:/a:debian:debian_linux:inetutils-tools, p-cpe:/a:debian:debian_linux:inetutils-syslogd, p-cpe:/a:debian:debian_linux:inetutils-ping, p-cpe:/a:debian:debian_linux:inetutils-telnet, p-cpe:/a:debian:debian_linux:inetutils-traceroute, p-cpe:/a:debian:debian_linux:inetutils-talkd

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/25/2022

Vulnerability Publication Date: 7/10/2019

Reference Information

CVE: CVE-2019-0053, CVE-2020-8284, CVE-2021-40491, CVE-2022-39028

Detections

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