A denial of service flaw was found in the way the libxml2 library parsed certain XML files. An attacker could provide a specially crafted XML file that, when parsed by an application using libxml2, could cause that application to use an excessive amount of memory.
(CVE-2015-1819)
This issue was discovered by Florian Weimer of Red Hat Product Security.
This update also fixes the following bug :
This update fixes an error that occurred when running a test case for the serialization of HTML documents.
The desktop must be restarted (log out, then log back in) for this update to take effect.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(85200);
script_version("2.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");
script_cve_id("CVE-2015-1819");
script_name(english:"Scientific Linux Security Update : libxml2 on SL6.x i386/x86_64 (20150722)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Scientific Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"A denial of service flaw was found in the way the libxml2 library
parsed certain XML files. An attacker could provide a specially
crafted XML file that, when parsed by an application using libxml2,
could cause that application to use an excessive amount of memory.
(CVE-2015-1819)
This issue was discovered by Florian Weimer of Red Hat Product
Security.
This update also fixes the following bug :
This update fixes an error that occurred when running a test case for
the serialization of HTML documents.
The desktop must be restarted (log out, then log back in) for this
update to take effect."
);
# https://listserv.fnal.gov/scripts/wa.exe?A2=ind1508&L=scientific-linux-errata&F=&S=&P=2135
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?6960edf5"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libxml2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libxml2-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libxml2-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libxml2-python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:libxml2-static");
script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
script_set_attribute(attribute:"vuln_publication_date", value:"2015/08/14");
script_set_attribute(attribute:"patch_publication_date", value:"2015/07/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/04");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Scientific Linux Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("misc_func.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^6([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 6.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu);
flag = 0;
if (rpm_check(release:"SL6", reference:"libxml2-2.7.6-20.el6")) flag++;
if (rpm_check(release:"SL6", reference:"libxml2-debuginfo-2.7.6-20.el6")) flag++;
if (rpm_check(release:"SL6", reference:"libxml2-devel-2.7.6-20.el6")) flag++;
if (rpm_check(release:"SL6", reference:"libxml2-python-2.7.6-20.el6")) flag++;
if (rpm_check(release:"SL6", reference:"libxml2-static-2.7.6-20.el6")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libxml2 / libxml2-debuginfo / libxml2-devel / libxml2-python / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
fermilab | scientific_linux | libxml2 | p-cpe:/a:fermilab:scientific_linux:libxml2 |
fermilab | scientific_linux | libxml2-debuginfo | p-cpe:/a:fermilab:scientific_linux:libxml2-debuginfo |
fermilab | scientific_linux | libxml2-devel | p-cpe:/a:fermilab:scientific_linux:libxml2-devel |
fermilab | scientific_linux | libxml2-python | p-cpe:/a:fermilab:scientific_linux:libxml2-python |
fermilab | scientific_linux | libxml2-static | p-cpe:/a:fermilab:scientific_linux:libxml2-static |
fermilab | scientific_linux | x-cpe:/o:fermilab:scientific_linux |