Vulnerabilities > CVE-2017-7862 - Out-of-bounds Write vulnerability in Ffmpeg

#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from openSUSE Security Update openSUSE-2017-524.
#
# The text description of this plugin is (C) SUSE LLC.
#

include("compat.inc");

if (description)
{
  script_id(99722);
  script_version("3.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2016-10190", "CVE-2016-10191", "CVE-2016-10192", "CVE-2017-7859", "CVE-2017-7862", "CVE-2017-7863", "CVE-2017-7865", "CVE-2017-7866");

  script_name(english:"openSUSE Security Update : ffmpeg (openSUSE-2017-524)");
  script_summary(english:"Check for the openSUSE-2017-524 patch");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote openSUSE host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for ffmpeg to version 3.3 fixes several issues.

These security issues were fixed :

  - CVE-2016-10190: Heap-based buffer overflow in
    libavformat/http.c in FFmpeg allowed remote web servers
    to execute arbitrary code via a negative chunk size in
    an HTTP response (boo#1022920)

  - CVE-2016-10191: Heap-based buffer overflow in
    libavformat/rtmppkt.c in FFmpeg allowed remote attackers
    to execute arbitrary code by leveraging failure to check
    for RTMP packet size mismatches (boo#1022921)

  - CVE-2016-10192: Heap-based buffer overflow in ffserver.c
    in FFmpeg allowed remote attackers to execute arbitrary
    code by leveraging failure to check chunk size
    (boo#1022922)

  - CVE-2017-7859: FFmpeg had an out-of-bounds write caused
    by a heap-based buffer overflow related to the
    ff_h264_slice_context_init function in
    libavcodec/h264dec.c (bsc#1034183).

  - CVE-2017-7862: FFmpeg had an out-of-bounds write caused
    by a heap-based buffer overflow related to the
    decode_frame function in libavcodec/pictordec.c
    (bsc#1034181).

  - CVE-2017-7863: FFmpeg had an out-of-bounds write caused
    by a heap-based buffer overflow related to the
    decode_frame_common function in libavcodec/pngdec.c
    (boo#1034179)

  - CVE-2017-7865: FFmpeg had an out-of-bounds write caused
    by a heap-based buffer overflow related to the
    ipvideo_decode_block_opcode_0xA function in
    libavcodec/interplayvideo.c and the
    avcodec_align_dimensions2 function in libavcodec/utils.c
    (boo#1034177)

  - CVE-2017-7866: FFmpeg had an out-of-bounds write caused
    by a stack-based buffer overflow related to the
    decode_zbuf function in libavcodec/pngdec.c
    (boo#1034176)

These non-security issues were fixed :

  - Enable ac3 

  - Enable mp3 decoding

  - EBU R128 implementation now within ffmpeg, not relying
    on external library anymore

  - New video filters 'premultiply', 'readeia608',
    'threshold', 'midequalizer'

  - Support for spherical videos

  - New decoders: 16.8 and 24.0 floating point PCM, XPM

  - New demuxers: MIDI Sample Dump Standard, Sample Dump
    eXchange demuxer

  - MJPEG encoding uses Optimal Huffman tables now

  - Native Opus encoder

  - Support .mov with multiple sample description tables

  - Removed the legacy X11 screen grabber, use XCB instead

  - Removed asyncts filter (use af_aresample instead)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022920"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022921"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1022922"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034176"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034177"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034179"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034181"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1034183"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected ffmpeg packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ffmpeg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ffmpeg-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:ffmpeg-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec57");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec57-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec57-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavcodec57-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice57");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice57-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice57-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavdevice57-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter6-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter6-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavfilter6-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat57");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat57-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat57-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavformat57-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample3-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample3-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavresample3-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil55");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil55-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil55-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libavutil55-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpostproc-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpostproc54");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpostproc54-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpostproc54-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpostproc54-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswresample-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswresample2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswresample2-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswresample2-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswresample2-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale4-32bit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale4-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libswscale4-debuginfo-32bit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.2");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/04/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/04/28");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2020 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
if (release !~ "^(SUSE42\.2)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.2", release);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

ourarch = get_kb_item("Host/cpu");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);

flag = 0;

if ( rpm_check(release:"SUSE42.2", reference:"ffmpeg-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"ffmpeg-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"ffmpeg-debugsource-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavcodec-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavcodec57-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavcodec57-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavdevice-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavdevice57-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavdevice57-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavfilter-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavfilter6-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavfilter6-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavformat-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavformat57-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavformat57-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavresample-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavresample3-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavresample3-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavutil-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavutil55-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libavutil55-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libpostproc-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libpostproc54-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libpostproc54-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libswresample-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libswresample2-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libswresample2-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libswscale-devel-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libswscale4-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", reference:"libswscale4-debuginfo-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavcodec57-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavcodec57-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavdevice57-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavdevice57-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavfilter6-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavfilter6-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavformat57-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavformat57-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavresample3-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavresample3-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavutil55-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libavutil55-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libpostproc54-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libpostproc54-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libswresample2-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libswresample2-debuginfo-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libswscale4-32bit-3.3-6.6.1") ) flag++;
if ( rpm_check(release:"SUSE42.2", cpu:"x86_64", reference:"libswscale4-debuginfo-32bit-3.3-6.6.1") ) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "ffmpeg / ffmpeg-debuginfo / ffmpeg-debugsource / libavcodec-devel / etc");
}

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 201811-19.
#
# The advisory text is Copyright (C) 2001-2018 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(119164);
  script_version("1.1");
  script_cvs_date("Date: 2018/11/27 13:31:29");

  script_cve_id("CVE-2017-16803", "CVE-2017-7862");
  script_xref(name:"GLSA", value:"201811-19");

  script_name(english:"GLSA-201811-19 : Libav: Multiple vulnerabilities");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-201811-19
(Libav: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Libav. Please review
      the CVE identifiers referenced below for details.
  
Impact :

    A remote attacker, via a crafted Smacker stream, could cause a Denial of
      Service condition.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/201811-19"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Libav users should upgrade to the latest version:
      # emerge --sync
      # emerge --ask --oneshot --verbose '>=media-video/libav-12.3'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:libav");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/11/27");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/27");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"media-video/libav", unaffected:make_list("ge 12.3"), vulnerable:make_list("lt 12.3"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Libav");
}