CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
90.2%
It was discovered that Libav incorrectly handled certain malformed media files. If a user were tricked into opening a crafted media file, an attacker could cause a denial of service via application crash, or possibly execute arbitrary code with the privileges of the user invoking the program.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu 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 Ubuntu Security Notice USN-2944-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include("compat.inc");
if (description)
{
script_id(90349);
script_version("2.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/12");
script_cve_id("CVE-2014-8541", "CVE-2015-1872", "CVE-2015-3395", "CVE-2015-5479", "CVE-2015-6818", "CVE-2015-6820", "CVE-2015-6824", "CVE-2015-6826", "CVE-2015-8364", "CVE-2015-8365", "CVE-2016-1897", "CVE-2016-1898", "CVE-2016-2326", "CVE-2016-2330");
script_xref(name:"USN", value:"2944-1");
script_name(english:"Ubuntu 12.04 LTS : libav vulnerabilities (USN-2944-1)");
script_summary(english:"Checks dpkg output for updated packages.");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Ubuntu host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"It was discovered that Libav incorrectly handled certain malformed
media files. If a user were tricked into opening a crafted media file,
an attacker could cause a denial of service via application crash, or
possibly execute arbitrary code with the privileges of the user
invoking the program.
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/2944-1/"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected libavcodec53 and / or libavformat53 packages."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:canonical:ubuntu_linux:libavcodec53");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libavformat53");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
script_set_attribute(attribute:"vuln_publication_date", value:"2014/11/05");
script_set_attribute(attribute:"patch_publication_date", value:"2016/04/04");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/04/05");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"Ubuntu Security Notice (C) 2016-2023 Canonical, Inc. / NASL script (C) 2016-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Ubuntu Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");
if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
var release = chomp(release);
if (! preg(pattern:"^(12\.04)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Ubuntu', cpu);
var flag = 0;
if (ubuntu_check(osver:"12.04", pkgname:"libavcodec53", pkgver:"4:0.8.17-0ubuntu0.12.04.2")) flag++;
if (ubuntu_check(osver:"12.04", pkgname:"libavformat53", pkgver:"4:0.8.17-0ubuntu0.12.04.2")) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "libavcodec53 / libavformat53");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8541
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1872
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3395
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5479
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6818
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6820
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6824
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-6826
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8364
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8365
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1897
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1898
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2326
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2330
usn.ubuntu.com/2944-1/
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
Percentile
90.2%