CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
83.2%
Rauli Kaksonen, Tero Rontti and Jukka Taimisto discovered several vulnerabilities in libxml2, a library for parsing and handling XML data files, which can lead to denial of service conditions or possibly arbitrary code execution in the application using the library. The Common Vulnerabilities and Exposures project identifies the following problems :
CVE-2009-2416 An XML document with specially crafted Notation or Enumeration attribute types in a DTD definition leads to the use of a pointers to memory areas which have already been freed.
CVE-2009-2414 Missing checks for the depth of ELEMENT DTD definitions when parsing child content can lead to extensive stack-growth due to a function recursion which can be triggered via a crafted XML document.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-1859. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(44724);
script_version("1.20");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");
script_cve_id("CVE-2009-2414", "CVE-2009-2416");
script_xref(name:"DSA", value:"1859");
script_name(english:"Debian DSA-1859-1 : libxml2 - several vulnerabilities");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Rauli Kaksonen, Tero Rontti and Jukka Taimisto discovered several
vulnerabilities in libxml2, a library for parsing and handling XML
data files, which can lead to denial of service conditions or possibly
arbitrary code execution in the application using the library. The
Common Vulnerabilities and Exposures project identifies the following
problems :
- CVE-2009-2416
An XML document with specially crafted Notation or
Enumeration attribute types in a DTD definition leads to
the use of a pointers to memory areas which have already
been freed.
- CVE-2009-2414
Missing checks for the depth of ELEMENT DTD definitions
when parsing child content can lead to extensive
stack-growth due to a function recursion which can be
triggered via a crafted XML document."
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2009-2416"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2009-2414"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2009/dsa-1859"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the libxml2 packages.
For the oldstable distribution (etch), this problem has been fixed in
version 2.6.27.dfsg-6+etch1.
For the stable distribution (lenny), this problem has been fixed in
version 2.6.32.dfsg-5+lenny1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
script_cwe_id(119, 399);
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:"cpe:/o:debian:debian_linux:4.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
script_set_attribute(attribute:"patch_publication_date", value:"2009/08/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2010/02/24");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2010-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
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:"4.0", prefix:"libxml2", reference:"2.6.27.dfsg-6+etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libxml2-dbg", reference:"2.6.27.dfsg-6+etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libxml2-dev", reference:"2.6.27.dfsg-6+etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libxml2-doc", reference:"2.6.27.dfsg-6+etch1")) flag++;
if (deb_check(release:"4.0", prefix:"libxml2-utils", reference:"2.6.27.dfsg-6+etch1")) flag++;
if (deb_check(release:"4.0", prefix:"python-libxml2", reference:"2.6.27.dfsg-6+etch1")) flag++;
if (deb_check(release:"5.0", prefix:"libxml2", reference:"2.6.32.dfsg-5+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"libxml2-dbg", reference:"2.6.32.dfsg-5+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"libxml2-dev", reference:"2.6.32.dfsg-5+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"libxml2-doc", reference:"2.6.32.dfsg-5+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"libxml2-utils", reference:"2.6.32.dfsg-5+lenny1")) flag++;
if (deb_check(release:"5.0", prefix:"python-libxml2", reference:"2.6.32.dfsg-5+lenny1")) 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 | 4.0 | cpe:/o:debian:debian_linux:4.0 |
debian | debian_linux | 5.0 | cpe:/o:debian:debian_linux:5.0 |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS
Percentile
83.2%