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nessusThis script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DLA-3094.NASL
HistorySep 04, 2022 - 12:00 a.m.

Debian DLA-3094-1 : flac - LTS security update

2022-09-0400:00:00
This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
18

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

0.0004 Low

EPSS

Percentile

5.1%

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3094 advisory.

  • In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions:
    Android-11Android ID: A-174302683 (CVE-2021-0561)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-3094. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(164674);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/09/04");

  script_cve_id("CVE-2021-0561");

  script_name(english:"Debian DLA-3094-1 : flac - LTS security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3094
advisory.

  - In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to
    a missing bounds check. This could lead to local information disclosure with no additional execution
    privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions:
    Android-11Android ID: A-174302683 (CVE-2021-0561)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1006339");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/flac");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2022/dla-3094");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-0561");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/flac");
  script_set_attribute(attribute:"solution", value:
"Upgrade the flac packages.

For Debian 10 buster, this problem has been fixed in version 1.3.2-3+deb10u2.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N");
  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:L/UI:N/S:U/C:H/I:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-0561");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/06/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/09/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/09/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:flac");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libflac++-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libflac++6v5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libflac-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libflac-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libflac8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}

include('debian_package.inc');

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);

var release = get_kb_item('Host/Debian/release');
if ( isnull(release) ) audit(AUDIT_OS_NOT, 'Debian');
var release = chomp(release);
if (! preg(pattern:"^(10)\.[0-9]+", string:release)) audit(AUDIT_OS_NOT, 'Debian 10.0', 'Debian ' + release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);

var pkgs = [
    {'release': '10.0', 'prefix': 'flac', 'reference': '1.3.2-3+deb10u2'},
    {'release': '10.0', 'prefix': 'libflac++-dev', 'reference': '1.3.2-3+deb10u2'},
    {'release': '10.0', 'prefix': 'libflac++6v5', 'reference': '1.3.2-3+deb10u2'},
    {'release': '10.0', 'prefix': 'libflac-dev', 'reference': '1.3.2-3+deb10u2'},
    {'release': '10.0', 'prefix': 'libflac-doc', 'reference': '1.3.2-3+deb10u2'},
    {'release': '10.0', 'prefix': 'libflac8', 'reference': '1.3.2-3+deb10u2'}
];

var flag = 0;
foreach package_array ( pkgs ) {
  var release = NULL;
  var prefix = NULL;
  var reference = NULL;
  if (!empty_or_null(package_array['release'])) release = package_array['release'];
  if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (release && prefix && reference) {
    if (deb_check(release:release, prefix:prefix, reference:reference)) flag++;
  }
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : deb_report_get()
  );
  exit(0);
}
else
{
  var tested = deb_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'flac / libflac++-dev / libflac++6v5 / libflac-dev / libflac-doc / etc');
}
VendorProductVersionCPE
debiandebian_linuxflacp-cpe:/a:debian:debian_linux:flac
debiandebian_linuxlibflac%2b%2b-devp-cpe:/a:debian:debian_linux:libflac%2b%2b-dev
debiandebian_linuxlibflac%2b%2b6v5p-cpe:/a:debian:debian_linux:libflac%2b%2b6v5
debiandebian_linuxlibflac-devp-cpe:/a:debian:debian_linux:libflac-dev
debiandebian_linuxlibflac-docp-cpe:/a:debian:debian_linux:libflac-doc
debiandebian_linuxlibflac8p-cpe:/a:debian:debian_linux:libflac8
debiandebian_linux10.0cpe:/o:debian:debian_linux:10.0

5.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

2.1 Low

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:P/I:N/A:N

0.0004 Low

EPSS

Percentile

5.1%