Debian DLA-666-1 : guile-2.0 security update

critical Nessus Plugin ID 94114

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Synopsis

The remote Debian host is missing a security update.

Description

Several vulnerabilities were discovered in GNU Guile, an implementation of the Scheme programming language. The Common Vulnerabilities and Exposures project identifies the following issues.

CVE-2016-8605: The mkdir procedure of GNU Guile temporarily changed the process' umask to zero. During that time window, in a multithreaded application, other threads could end up creating files with insecure permissions.

CVE-2016-8606: GNU Guile provides a 'REPL server' which is a command prompt that developers can connect to for live coding and debugging purposes. The REPL server is started by the '--listen' command-line option or equivalent API.

It was reported that the REPL server is vulnerable to the HTTP inter-protocol attack.

This constitutes a remote code execution vulnerability for developers running a REPL server that listens on a loopback device or private network. Applications that do not run a REPL server, as is usually the case, are unaffected.

For Debian 7 'Wheezy', these problems have been fixed in version 2.0.5+1-3+deb7u1.

We recommend that you upgrade your guile-2.0 packages.

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: Critical

ID: 94114

File Name: debian_DLA-666.nasl

Version: 2.8

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/19/2016

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:7.0, p-cpe:/a:debian:debian_linux:guile-2.0-libs, p-cpe:/a:debian:debian_linux:guile-2.0, p-cpe:/a:debian:debian_linux:guile-2.0-dev, p-cpe:/a:debian:debian_linux:guile-2.0-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/18/2016

Reference Information

CVE: CVE-2016-8605, CVE-2016-8606

Detections

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