5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.024 Low
EPSS
Percentile
89.9%
It was discovered that the update released for libxml2 in DSA 2978 fixing CVE-2014-0191 was incomplete. This caused libxml2 to still fetch external entities regardless of whether entity substitution or validation is enabled.
In addition, this update addresses a regression introduced in DSA 3057 by the patch fixing CVE-2014-3660. This caused libxml2 to not parse an entity when it’s used first in another entity referenced from an attribute value.
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-151-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(82134);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2014-0191", "CVE-2014-3660");
script_bugtraq_id(67233, 70644);
script_name(english:"Debian DLA-151-1 : libxml2 security update");
script_summary(english:"Checks dpkg output for the updated packages.");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"It was discovered that the update released for libxml2 in DSA 2978
fixing CVE-2014-0191 was incomplete. This caused libxml2 to still
fetch external entities regardless of whether entity substitution or
validation is enabled.
In addition, this update addresses a regression introduced in DSA 3057
by the patch fixing CVE-2014-3660. This caused libxml2 to not parse an
entity when it's used first in another entity referenced from an
attribute value.
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."
);
script_set_attribute(
attribute:"see_also",
value:"https://lists.debian.org/debian-lts-announce/2015/02/msg00005.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/squeeze-lts/libxml2"
);
script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libxml2-utils");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-libxml2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-libxml2-dbg");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");
script_set_attribute(attribute:"patch_publication_date", value:"2015/02/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/26");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 Tenable Network Security, Inc.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"6.0", prefix:"libxml2", reference:"2.7.8.dfsg-2+squeeze11")) flag++;
if (deb_check(release:"6.0", prefix:"libxml2-dbg", reference:"2.7.8.dfsg-2+squeeze11")) flag++;
if (deb_check(release:"6.0", prefix:"libxml2-dev", reference:"2.7.8.dfsg-2+squeeze11")) flag++;
if (deb_check(release:"6.0", prefix:"libxml2-doc", reference:"2.7.8.dfsg-2+squeeze11")) flag++;
if (deb_check(release:"6.0", prefix:"libxml2-utils", reference:"2.7.8.dfsg-2+squeeze11")) flag++;
if (deb_check(release:"6.0", prefix:"python-libxml2", reference:"2.7.8.dfsg-2+squeeze11")) flag++;
if (deb_check(release:"6.0", prefix:"python-libxml2-dbg", reference:"2.7.8.dfsg-2+squeeze11")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libxml2 | p-cpe:/a:debian:debian_linux:libxml2 |
debian | debian_linux | libxml2-dbg | p-cpe:/a:debian:debian_linux:libxml2-dbg |
debian | debian_linux | libxml2-dev | p-cpe:/a:debian:debian_linux:libxml2-dev |
debian | debian_linux | libxml2-doc | p-cpe:/a:debian:debian_linux:libxml2-doc |
debian | debian_linux | libxml2-utils | p-cpe:/a:debian:debian_linux:libxml2-utils |
debian | debian_linux | python-libxml2 | p-cpe:/a:debian:debian_linux:python-libxml2 |
debian | debian_linux | python-libxml2-dbg | p-cpe:/a:debian:debian_linux:python-libxml2-dbg |
debian | debian_linux | 6.0 | cpe:/o:debian:debian_linux:6.0 |