CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
94.3%
The remote host is affected by the vulnerability described in GLSA-200809-01 (yelp: User-assisted execution of arbitrary code)
Aaron Grattafiori reported a format string vulnerability in the window_error() function in yelp-window.c.
Impact :
A remote attacker can entice a user to open specially crafted 'man:' or 'ghelp:' URIs in yelp, or an application using yelp such as Firefox or Evolution, and execute arbitrary code with the privileges of that user.
Workaround :
There is no known workaround at this time.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200809-01.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(34090);
script_version("1.15");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2008-3533");
script_xref(name:"GLSA", value:"200809-01");
script_name(english:"GLSA-200809-01 : yelp: User-assisted execution of arbitrary code");
script_summary(english:"Checks for updated package(s) in /var/db/pkg");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Gentoo host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"The remote host is affected by the vulnerability described in GLSA-200809-01
(yelp: User-assisted execution of arbitrary code)
Aaron Grattafiori reported a format string vulnerability in the
window_error() function in yelp-window.c.
Impact :
A remote attacker can entice a user to open specially crafted 'man:' or
'ghelp:' URIs in yelp, or an application using yelp such as Firefox or
Evolution, and execute arbitrary code with the privileges of that user.
Workaround :
There is no known workaround at this time."
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200809-01"
);
script_set_attribute(
attribute:"solution",
value:
"All yelp users running GNOME 2.22 should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=gnome-extra/yelp-2.22.1-r2'
All yelp users running GNOME 2.20 should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=gnome-extra/yelp-2.20.0-r1'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_cwe_id(134);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:yelp");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2008/09/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2008/09/05");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2008-2021 Tenable Network Security, Inc.");
script_family(english:"Gentoo Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (qpkg_check(package:"gnome-extra/yelp", unaffected:make_list("ge 2.22.1-r2", "rge 2.20.0-r1"), vulnerable:make_list("lt 2.22.1-r2"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "yelp");
}