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GLSA-200611-01 : Screen: UTF-8 character handling vulnerability

low Nessus Plugin ID 22939

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200611-01 (Screen: UTF-8 character handling vulnerability)

 cstone and Richard Felker discovered a flaw in Screen's UTF-8 combining character handling.
 Impact :

 The vulnerability can be exploited by writing a special string of characters to a Screen window. A remote attacker could cause a Denial of Service or possibly execute arbitrary code with the privileges of the user running Screen through a program being run inside a Screen session, such as an IRC client or a mail client.
 Workaround :

 There is no known workaround at this time.

Solution

All Screen users should upgrade to the latest version:
 # emerge --sync # emerge --ask --oneshot --verbose '>=app-misc/screen-4.0.3'

See Also

https://security.gentoo.org/glsa/200611-01

Plugin Details

Severity: Low

ID: 22939

File Name: gentoo_GLSA-200611-01.nasl

Version: 1.15

Type: local

Published: 11/6/2006

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Low

Base Score: 2.6

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:screen, cpe:/o:gentoo:linux

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

Patch Publication Date: 11/3/2006

Vulnerability Publication Date: 10/23/2006

Reference Information

CVE: CVE-2006-4573

GLSA: 200611-01