Debian DLA-2833-1 : rsync - LTS security update

high Nessus Plugin ID 155739

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 9 host has a package installed that is affected by a vulnerability as referenced in the dla-2833 advisory.

- The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple
--protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism. (CVE-2018-5764)

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

Solution

Upgrade the rsync packages.

For Debian 9 stretch, this problem has been fixed in version 3.1.2-1+deb9u3.

See Also

https://security-tracker.debian.org/tracker/source-package/rsync

https://packages.debian.org/source/stretch/rsync

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=887588

https://www.debian.org/lts/security/2021/dla-2833

https://security-tracker.debian.org/tracker/CVE-2018-5764

Plugin Details

Severity: High

ID: 155739

File Name: debian_DLA-2833.nasl

Version: 1.2

Type: local

Agent: unix

Published: 12/1/2021

Updated: 12/1/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2018-5764

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*, p-cpe:2.3:a:debian:debian_linux:rsync:*:*:*:*:*:*:*

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

Exploit Ease: No known exploits are available

Patch Publication Date: 11/30/2021

Vulnerability Publication Date: 1/17/2018

Reference Information

CVE: CVE-2018-5764