The remote host is affected by the vulnerability described in GLSA-200501-28 (Xpdf, GPdf: Stack overflow in Decrypt::makeFileKey2)
iDEFENSE reports that the Decrypt::makeFileKey2 function in Xpdf's Decrypt.cc insufficiently checks boundaries when processing /Encrypt /Length tags in PDF files.
Impact :
An attacker could entice an user to open a specially crafted PDF file which would trigger a stack overflow, potentially resulting in execution of arbitrary code with the rights of the user running Xpdf or GPdf.
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 200501-28.
#
# 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(16419);
script_version("1.23");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2005-0064");
script_xref(name:"GLSA", value:"200501-28");
script_name(english:"GLSA-200501-28 : Xpdf, GPdf: Stack overflow in Decrypt::makeFileKey2");
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-200501-28
(Xpdf, GPdf: Stack overflow in Decrypt::makeFileKey2)
iDEFENSE reports that the Decrypt::makeFileKey2 function in Xpdf's
Decrypt.cc insufficiently checks boundaries when processing /Encrypt
/Length tags in PDF files.
Impact :
An attacker could entice an user to open a specially crafted PDF
file which would trigger a stack overflow, potentially resulting in
execution of arbitrary code with the rights of the user running Xpdf or
GPdf.
Workaround :
There is no known workaround at this time."
);
# http://www.idefense.com/application/poi/display?id=186&type=vulnerabilities&flashstatus=true
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?d0de7eb8"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200501-28"
);
script_set_attribute(
attribute:"solution",
value:
"All Xpdf users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-text/xpdf-3.00-r8'
All GPdf users should also upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-text/gpdf-2.8.2'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:gpdf");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xpdf");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2005/01/21");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/02/14");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/01/18");
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/gpdf", unaffected:make_list("ge 2.8.2"), vulnerable:make_list("lt 2.8.2"))) flag++;
if (qpkg_check(package:"app-text/xpdf", unaffected:make_list("ge 3.00-r8"), vulnerable:make_list("le 3.00-r7"))) 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, "Xpdf / GPdf: Stack overflow in Decrypt:");
}