Vulnerabilities > CVE-2016-8698 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Potrace Project Potrace

047910
CVSS 6.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
potrace-project
CWE-119
nessus

Summary

Heap-based buffer overflow in the bm_readbody_bmp function in bitmap_io.c in potrace before 1.13 allows remote attackers to have unspecified impact via a crafted BMP image, a different vulnerability than CVE-2016-8699, CVE-2016-8700, CVE-2016-8701, CVE-2016-8702, and CVE-2016-8703.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DLA-675.NASL
descriptionMultiple vulnerabilities have been found in potrace. CVE-2013-7437 Multiple integer overflows in potrace 1.11 allow remote attackers to cause a denial of service (crash) via large dimensions in a BMP image, which triggers a buffer overflow. This bug was reported by Murray McAllister of the Red Hat Security Response Team. CVE-2016-8694 CVE-2016-8695 CVE-2016-8696 Multiple NULL pointer dereferences in bm_readbody_bmp. This bug was discovered by Agostino Sarubbo of Gentoo. CVE-2016-8697 Division by zero in bm_new. This bug was discovered by Agostino Sarubbo of Gentoo. CVE-2016-8698 CVE-2016-8699 CVE-2016-8700 CVE-2016-8701 CVE-2016-8702 CVE-2016-8703 Multiple heap-based buffer overflows in bm_readbody_bmp. This bug was discovered by Agostino Sarubbo of Gentoo. For Debian 7
last seen2020-03-17
modified2016-10-27
plugin id94293
published2016-10-27
reporterThis script is Copyright (C) 2016-2020 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/94293
titleDebian DLA-675-1 : potrace security update
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-675-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94293);
  script_version("2.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2013-7437", "CVE-2016-8694", "CVE-2016-8695", "CVE-2016-8696", "CVE-2016-8697", "CVE-2016-8698", "CVE-2016-8699", "CVE-2016-8700", "CVE-2016-8701", "CVE-2016-8702", "CVE-2016-8703");
  script_bugtraq_id(73395);

  script_name(english:"Debian DLA-675-1 : potrace 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:
"Multiple vulnerabilities have been found in potrace.

CVE-2013-7437

Multiple integer overflows in potrace 1.11 allow remote attackers to
cause a denial of service (crash) via large dimensions in a BMP image,
which triggers a buffer overflow. This bug was reported by Murray
McAllister of the Red Hat Security Response Team.

CVE-2016-8694 CVE-2016-8695 CVE-2016-8696

Multiple NULL pointer dereferences in bm_readbody_bmp. This bug was
discovered by Agostino Sarubbo of Gentoo.

CVE-2016-8697

Division by zero in bm_new. This bug was discovered by Agostino
Sarubbo of Gentoo.

CVE-2016-8698 CVE-2016-8699 CVE-2016-8700 CVE-2016-8701 CVE-2016-8702
CVE-2016-8703

Multiple heap-based buffer overflows in bm_readbody_bmp. This bug was
discovered by Agostino Sarubbo of Gentoo.

For Debian 7 'Wheezy', these problems have been fixed in version
1.10-1+deb7u1.

We recommend that you upgrade your potrace 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/2016/10/msg00034.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/potrace"
  );
  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:L/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:libpotrace-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpotrace0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:potrace");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/10/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/10/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2020 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:"7.0", prefix:"libpotrace-dev", reference:"1.10-1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpotrace0", reference:"1.10-1+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"potrace", reference:"1.10-1+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");