10 High
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
0.096 Low
EPSS
Percentile
94.8%
The remote host is affected by the vulnerability described in GLSA-200501-31 (teTeX, pTeX, CSTeX: Multiple vulnerabilities)
teTeX, pTeX and CSTeX all make use of Xpdf code and may therefore be vulnerable to the various overflows that were discovered in Xpdf code (CAN-2004-0888, CAN-2004-0889, CAN-2004-1125 and CAN-2005-0064).
Furthermore, Javier Fernandez-Sanguino Pena discovered that the xdvizilla script does not handle temporary files correctly.
Impact :
An attacker could design a malicious input file which, when processed using one of the TeX distributions, could lead to the execution of arbitrary code. Furthermore, a local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When xdvizilla is called, this would result in the file being overwritten with the rights of the user running the script.
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 200501-31.
#
# 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(16422);
script_version("1.19");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2004-0888", "CVE-2004-0889", "CVE-2004-1125", "CVE-2005-0064");
script_xref(name:"GLSA", value:"200501-31");
script_name(english:"GLSA-200501-31 : teTeX, pTeX, CSTeX: Multiple vulnerabilities");
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-200501-31
(teTeX, pTeX, CSTeX: Multiple vulnerabilities)
teTeX, pTeX and CSTeX all make use of Xpdf code and may therefore
be vulnerable to the various overflows that were discovered in Xpdf
code (CAN-2004-0888, CAN-2004-0889, CAN-2004-1125 and CAN-2005-0064).
Furthermore, Javier Fernandez-Sanguino Pena discovered that the
xdvizilla script does not handle temporary files correctly.
Impact :
An attacker could design a malicious input file which, when
processed using one of the TeX distributions, could lead to the
execution of arbitrary code. Furthermore, a local attacker could create
symbolic links in the temporary files directory, pointing to a valid
file somewhere on the filesystem. When xdvizilla is called, this would
result in the file being overwritten with the rights of the user
running the script.
Workaround :
There is no known workaround at this time."
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200501-31"
);
script_set_attribute(
attribute:"solution",
value:
"All teTeX users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-text/tetex-2.0.2-r5'
All CSTeX users should also upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-text/cstetex-2.0.2-r1'
Finally, all pTeX users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-text/ptex-3.1.4-r2'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
script_cwe_id(20);
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:cstetex");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:ptex");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:tetex");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2005/01/23");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/14");
script_set_attribute(attribute:"vuln_publication_date", value:"2004/10/22");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2005-2021 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:"app-text/tetex", unaffected:make_list("ge 2.0.2-r5"), vulnerable:make_list("lt 2.0.2-r5"))) flag++;
if (qpkg_check(package:"app-text/cstetex", unaffected:make_list("ge 2.0.2-r1"), vulnerable:make_list("lt 2.0.2-r1"))) flag++;
if (qpkg_check(package:"app-text/ptex", unaffected:make_list("ge 3.1.4-r2"), vulnerable:make_list("lt 3.1.4-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, "teTeX / pTeX / CSTeX");
}