6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.6 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
52.9%
The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2792 advisory.
A NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case.
(CVE-2018-20199)
An invalid memory address dereference was discovered in the sbr_process_channel function of libfaad/sbr_dec.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads to denial of service. (CVE-2018-20360)
An issue was discovered in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. It is a buffer over-read in ps_mix_phase in libfaad/ps_dec.c. (CVE-2019-6956)
An issue was discovered in faad2 through 2.10.0. A heap-buffer-overflow exists in the function sbr_qmf_synthesis_64 located in sbr_qmf.c. It allows an attacker to cause code Execution. (CVE-2021-32274)
An issue was discovered in faad2 through 2.10.0. A NULL pointer dereference exists in the function get_sample() located in output.c. It allows an attacker to cause Denial of Service. (CVE-2021-32276)
An issue was discovered in faad2 through 2.10.0. A heap-buffer-overflow exists in the function sbr_qmf_analysis_32 located in sbr_qmf.c. It allows an attacker to cause code Execution. (CVE-2021-32277)
An issue was discovered in faad2 through 2.10.0. A heap-buffer-overflow exists in the function lt_prediction located in lt_predict.c. It allows an attacker to cause code Execution. (CVE-2021-32278)
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 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-2792. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(154410);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/28");
script_cve_id(
"CVE-2018-20199",
"CVE-2018-20360",
"CVE-2019-6956",
"CVE-2021-32274",
"CVE-2021-32276",
"CVE-2021-32277",
"CVE-2021-32278"
);
script_name(english:"Debian DLA-2792-1 : faad2 - LTS security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-2792 advisory.
- A NULL pointer dereference was discovered in ifilter_bank of libfaad/filtbank.c in Freeware Advanced Audio
Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a segmentation fault and application crash, which leads
to denial of service because adding to windowed output is mishandled in the ONLY_LONG_SEQUENCE case.
(CVE-2018-20199)
- An invalid memory address dereference was discovered in the sbr_process_channel function of
libfaad/sbr_dec.c in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. The vulnerability causes a
segmentation fault and application crash, which leads to denial of service. (CVE-2018-20360)
- An issue was discovered in Freeware Advanced Audio Decoder 2 (FAAD2) 2.8.8. It is a buffer over-read in
ps_mix_phase in libfaad/ps_dec.c. (CVE-2019-6956)
- An issue was discovered in faad2 through 2.10.0. A heap-buffer-overflow exists in the function
sbr_qmf_synthesis_64 located in sbr_qmf.c. It allows an attacker to cause code Execution. (CVE-2021-32274)
- An issue was discovered in faad2 through 2.10.0. A NULL pointer dereference exists in the function
get_sample() located in output.c. It allows an attacker to cause Denial of Service. (CVE-2021-32276)
- An issue was discovered in faad2 through 2.10.0. A heap-buffer-overflow exists in the function
sbr_qmf_analysis_32 located in sbr_qmf.c. It allows an attacker to cause code Execution. (CVE-2021-32277)
- An issue was discovered in faad2 through 2.10.0. A heap-buffer-overflow exists in the function
lt_prediction located in lt_predict.c. It allows an attacker to cause code Execution. (CVE-2021-32278)
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://security-tracker.debian.org/tracker/source-package/faad2");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2021/dla-2792");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2018-20199");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2018-20360");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2019-6956");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-32274");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-32276");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-32277");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-32278");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/faad2");
script_set_attribute(attribute:"solution", value:
"Upgrade the faad2 packages.
For Debian 9 stretch, these problems have been fixed in version 2.8.0~cvs20161113-1+deb9u3.");
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:POC/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:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-32278");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/12/18");
script_set_attribute(attribute:"patch_publication_date", value:"2021/10/24");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/10/25");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:faad");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:faad2-dbg");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfaad-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libfaad2");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2023 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('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/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:"^(9)\.[0-9]+", string:release)) audit(AUDIT_OS_NOT, 'Debian 9.0', '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': '9.0', 'prefix': 'faad', 'reference': '2.8.0~cvs20161113-1+deb9u3'},
{'release': '9.0', 'prefix': 'faad2-dbg', 'reference': '2.8.0~cvs20161113-1+deb9u3'},
{'release': '9.0', 'prefix': 'libfaad-dev', 'reference': '2.8.0~cvs20161113-1+deb9u3'},
{'release': '9.0', 'prefix': 'libfaad2', 'reference': '2.8.0~cvs20161113-1+deb9u3'}
];
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_WARNING,
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, 'faad / faad2-dbg / libfaad-dev / libfaad2');
}
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | faad | p-cpe:/a:debian:debian_linux:faad |
debian | debian_linux | faad2-dbg | p-cpe:/a:debian:debian_linux:faad2-dbg |
debian | debian_linux | libfaad-dev | p-cpe:/a:debian:debian_linux:libfaad-dev |
debian | debian_linux | libfaad2 | p-cpe:/a:debian:debian_linux:libfaad2 |
debian | debian_linux | 9.0 | cpe:/o:debian:debian_linux:9.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20199
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20360
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6956
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32274
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32276
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32277
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32278
packages.debian.org/source/stretch/faad2
security-tracker.debian.org/tracker/CVE-2018-20199
security-tracker.debian.org/tracker/CVE-2018-20360
security-tracker.debian.org/tracker/CVE-2019-6956
security-tracker.debian.org/tracker/CVE-2021-32274
security-tracker.debian.org/tracker/CVE-2021-32276
security-tracker.debian.org/tracker/CVE-2021-32277
security-tracker.debian.org/tracker/CVE-2021-32278
security-tracker.debian.org/tracker/source-package/faad2
www.debian.org/lts/security/2021/dla-2792
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.6 Medium
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
52.9%