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Debian DLA-1192-1 : libofx security update

2017-11-27T00:00:00
ID DEBIAN_DLA-1192.NASL
Type nessus
Reporter Tenable
Modified 2018-07-09T00:00:00

Description

CVE-2017-2816 An exploitable buffer overflow vulnerability exists in the tag parsing functionality of LibOFX 0.9.11. A specially crafted OFX file can cause a write out of bounds resulting in a buffer overflow on the stack. An attacker can construct a malicious OFX file to trigger this vulnerability.

CVE-2017-14731 ofx_proc_file in ofx_preproc.cpp allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted file

For Debian 7 'Wheezy', these problems have been fixed in version 1:0.9.4-2.1+deb7u1.

We recommend that you upgrade your libofx packages.

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.

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-1192-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(104751);
  script_version("3.4");
  script_cvs_date("Date: 2018/07/09 12:26:58");

  script_cve_id("CVE-2017-14731", "CVE-2017-2816");

  script_name(english:"Debian DLA-1192-1 : libofx 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:
"CVE-2017-2816 An exploitable buffer overflow vulnerability exists in
the tag parsing functionality of LibOFX 0.9.11. A specially crafted
OFX file can cause a write out of bounds resulting in a buffer
overflow on the stack. An attacker can construct a malicious OFX file
to trigger this vulnerability.

CVE-2017-14731 ofx_proc_file in ofx_preproc.cpp allows remote
attackers to cause a denial of service (heap-based buffer over-read
and application crash) via a crafted file

For Debian 7 'Wheezy', these problems have been fixed in version
1:0.9.4-2.1+deb7u1.

We recommend that you upgrade your libofx packages.

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/2017/11/msg00038.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/libofx"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/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:libofx-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libofx-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libofx4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libofx4-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:ofx");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/11/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/11/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 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:"7.0", prefix:"libofx-dev", reference:"1:0.9.4-2.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libofx-doc", reference:"1:0.9.4-2.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libofx4", reference:"1:0.9.4-2.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libofx4-dbg", reference:"1:0.9.4-2.1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"ofx", reference:"1:0.9.4-2.1+deb7u1")) 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");
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