The remote Ubuntu 18.04 LTS / 20.04 LTS / 20.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4894-1 advisory.
A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
(CVE-2020-27918)
Clear History and Website Data did not clear the history. The issue was addressed with improved data deletion. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update 2020-007 Mojave, iOS 14.3 and iPadOS 14.3, tvOS 14.3. A user may be unable to fully delete browsing history. (CVE-2020-29623)
This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. Maliciously crafted web content may violate iframe sandboxing policy. (CVE-2021-1765)
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2021-1789)
A port redirection issue was addressed with additional port validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. A malicious website may be able to access restricted ports on arbitrary servers. (CVE-2021-1799)
This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Maliciously crafted web content may violate iframe sandboxing policy. (CVE-2021-1801)
A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited… (CVE-2021-1870)
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4894-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(148891);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/16");
script_cve_id(
"CVE-2020-27918",
"CVE-2020-29623",
"CVE-2021-1765",
"CVE-2021-1789",
"CVE-2021-1799",
"CVE-2021-1801",
"CVE-2021-1870"
);
script_xref(name:"USN", value:"4894-1");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/11/17");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/05/25");
script_name(english:"Ubuntu 18.04 LTS / 20.04 LTS : WebKitGTK vulnerabilities (USN-4894-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 18.04 LTS / 20.04 LTS / 20.10 host has packages installed that are affected by multiple
vulnerabilities as referenced in the USN-4894-1 advisory.
- A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur
11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes
12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
(CVE-2020-27918)
- Clear History and Website Data did not clear the history. The issue was addressed with improved data
deletion. This issue is fixed in macOS Big Sur 11.1, Security Update 2020-001 Catalina, Security Update
2020-007 Mojave, iOS 14.3 and iPadOS 14.3, tvOS 14.3. A user may be unable to fully delete browsing
history. (CVE-2020-29623)
- This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur
11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave. Maliciously crafted web content
may violate iframe sandboxing policy. (CVE-2021-1765)
- A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur
11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4
and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code
execution. (CVE-2021-1789)
- A port redirection issue was addressed with additional port validation. This issue is fixed in macOS Big
Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS
14.4 and iPadOS 14.4, Safari 14.0.3. A malicious website may be able to access restricted ports on
arbitrary servers. (CVE-2021-1799)
- This issue was addressed with improved iframe sandbox enforcement. This issue is fixed in macOS Big Sur
11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4
and iPadOS 14.4. Maliciously crafted web content may violate iframe sandboxing policy. (CVE-2021-1801)
- A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2,
Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote
attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may
have been actively exploited.. (CVE-2021-1870)
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://ubuntu.com/security/notices/USN-4894-1");
script_set_attribute(attribute:"solution", value:
"Update the affected 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:F/RL:OF/RC:C");
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_cvss3_temporal_vector("CVSS:3.0/E:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-1870");
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:"2020/10/31");
script_set_attribute(attribute:"patch_publication_date", value:"2021/03/29");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/04/21");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:gir1.2-javascriptcoregtk-4.0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:gir1.2-webkit2-4.0");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libjavascriptcoregtk-4.0-18");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libjavascriptcoregtk-4.0-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libjavascriptcoregtk-4.0-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libwebkit2gtk-4.0-37");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libwebkit2gtk-4.0-37-gtk2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libwebkit2gtk-4.0-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:webkit2gtk-driver");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2021-2023 Canonical, Inc. / NASL script (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/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);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('18.04' >< os_release || '20.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 18.04 / 20.04', 'Ubuntu ' + os_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 pkgs = [
{'osver': '18.04', 'pkgname': 'gir1.2-javascriptcoregtk-4.0', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'gir1.2-webkit2-4.0', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'libjavascriptcoregtk-4.0-18', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'libjavascriptcoregtk-4.0-bin', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'libjavascriptcoregtk-4.0-dev', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'libwebkit2gtk-4.0-37', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'libwebkit2gtk-4.0-37-gtk2', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'libwebkit2gtk-4.0-dev', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '18.04', 'pkgname': 'webkit2gtk-driver', 'pkgver': '2.30.6-0ubuntu0.18.04.1'},
{'osver': '20.04', 'pkgname': 'gir1.2-javascriptcoregtk-4.0', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'gir1.2-webkit2-4.0', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'libjavascriptcoregtk-4.0-18', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'libjavascriptcoregtk-4.0-bin', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'libjavascriptcoregtk-4.0-dev', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'libwebkit2gtk-4.0-37', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'libwebkit2gtk-4.0-37-gtk2', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'libwebkit2gtk-4.0-dev', 'pkgver': '2.30.6-0ubuntu0.20.04.1'},
{'osver': '20.04', 'pkgname': 'webkit2gtk-driver', 'pkgver': '2.30.6-0ubuntu0.20.04.1'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) 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, 'gir1.2-javascriptcoregtk-4.0 / gir1.2-webkit2-4.0 / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:lts |
canonical | ubuntu_linux | 20.04 | cpe:/o:canonical:ubuntu_linux:20.04:-:lts |
canonical | ubuntu_linux | gir1.2-javascriptcoregtk-4.0 | p-cpe:/a:canonical:ubuntu_linux:gir1.2-javascriptcoregtk-4.0 |
canonical | ubuntu_linux | gir1.2-webkit2-4.0 | p-cpe:/a:canonical:ubuntu_linux:gir1.2-webkit2-4.0 |
canonical | ubuntu_linux | libjavascriptcoregtk-4.0-18 | p-cpe:/a:canonical:ubuntu_linux:libjavascriptcoregtk-4.0-18 |
canonical | ubuntu_linux | libjavascriptcoregtk-4.0-bin | p-cpe:/a:canonical:ubuntu_linux:libjavascriptcoregtk-4.0-bin |
canonical | ubuntu_linux | libjavascriptcoregtk-4.0-dev | p-cpe:/a:canonical:ubuntu_linux:libjavascriptcoregtk-4.0-dev |
canonical | ubuntu_linux | libwebkit2gtk-4.0-37 | p-cpe:/a:canonical:ubuntu_linux:libwebkit2gtk-4.0-37 |
canonical | ubuntu_linux | libwebkit2gtk-4.0-37-gtk2 | p-cpe:/a:canonical:ubuntu_linux:libwebkit2gtk-4.0-37-gtk2 |
canonical | ubuntu_linux | libwebkit2gtk-4.0-dev | p-cpe:/a:canonical:ubuntu_linux:libwebkit2gtk-4.0-dev |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27918
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-29623
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1765
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1789
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1799
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1801
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1870
ubuntu.com/security/notices/USN-4894-1