Debian DLA-2391-1 : ruby2.3 security update

high Nessus Plugin ID 141133

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Synopsis

The remote Debian host is missing a security update.

Description

A potential HTTP request smuggling vulnerability in WEBrick was reported.

WEBrick (bundled along with ruby2.3) was too tolerant against an invalid Transfer-Encoding header. This may lead to inconsistent interpretation between WEBrick and some HTTP proxy servers, which may allow the attacker to 'smuggle' a request.

For Debian 9 stretch, this problem has been fixed in version 2.3.3-1+deb9u9.

We recommend that you upgrade your ruby2.3 packages.

For the detailed security status of ruby2.3 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/ruby2.3

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

Plugin Details

Severity: High

ID: 141133

File Name: debian_DLA-2391.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/5/2020

Updated: 2/16/2024

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

Risk Information

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

CVSS Score Source: CVE-2020-25613

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: p-cpe:/a:debian:debian_linux:ruby2.3-tcltk, p-cpe:/a:debian:debian_linux:ruby2.3-dev, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:ruby2.3-doc, p-cpe:/a:debian:debian_linux:libruby2.3, p-cpe:/a:debian:debian_linux:ruby2.3

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/1/2020

Vulnerability Publication Date: 10/6/2020

Reference Information

CVE: CVE-2020-25613

Detections

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