The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2020:4694 advisory.
A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows malicious containers in Kubernetes clusters to perform man-in-the-middle (MitM) attacks. A malicious container can exploit this flaw by sending rogue IPv6 router advertisements to the host or other containers, to redirect traffic to the malicious container. (CVE-2020-10749)
An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator.
This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible information disclosure. This flaw affects versions of libslirp before 4.3.1. (CVE-2020-10756)
The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the UTF-16 decoder entering an infinite loop, causing the program to crash or run out of memory. An attacker could provide a single byte to a UTF16 decoder instantiated with UseBOM or ExpectBOM to trigger an infinite loop if the String function on the Decoder is called, or the Decoder is passed to golang.org/x/text/transform.String. (CVE-2020-14040)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# Rocky Linux Security Advisory RLSA-2020:4694.
##
include('compat.inc');
if (description)
{
script_id(185064);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/07");
script_cve_id("CVE-2020-10749", "CVE-2020-10756", "CVE-2020-14040");
script_xref(name:"RLSA", value:"2020:4694");
script_name(english:"Rocky Linux 8 : container-tools:rhel8 (RLSA-2020:4694)");
script_set_attribute(attribute:"synopsis", value:
"The remote Rocky Linux host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the
RLSA-2020:4694 advisory.
- A vulnerability was found in all versions of containernetworking/plugins before version 0.8.6, that allows
malicious containers in Kubernetes clusters to perform man-in-the-middle (MitM) attacks. A malicious
container can exploit this flaw by sending rogue IPv6 router advertisements to the host or other
containers, to redirect traffic to the malicious container. (CVE-2020-10749)
- An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator.
This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known
as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible
information disclosure. This flaw affects versions of libslirp before 4.3.1. (CVE-2020-10756)
- The x/text package before 0.3.3 for Go has a vulnerability in encoding/unicode that could lead to the
UTF-16 decoder entering an infinite loop, causing the program to crash or run out of memory. An attacker
could provide a single byte to a UTF16 decoder instantiated with UseBOM or ExpectBOM to trigger an
infinite loop if the String function on the Decoder is called, or the Decoder is passed to
golang.org/x/text/transform.String. (CVE-2020-14040)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://errata.rockylinux.org/RLSA-2020:4694");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1682970");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1752079");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1785242");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1800815");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1801874");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1804193");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1804195");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1813845");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1814928");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1818694");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1821193");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1822038");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1825789");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1827794");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1833220");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1835986");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1837755");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1847544");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1849557");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1850230");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1853230");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1853652");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1857606");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1858862");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1860126");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1866153");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1866833");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1867447");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1868612");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1872263");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1877463");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1879622");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/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:L/UI:N/S:C/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-10749");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-10756");
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:"2020/06/03");
script_set_attribute(attribute:"patch_publication_date", value:"2020/11/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/11/07");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libslirp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libslirp-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libslirp-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:libslirp-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:python-podman-api");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:rocky:linux:toolbox");
script_set_attribute(attribute:"cpe", value:"cpe:/o:rocky:linux:8");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Rocky Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 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/RockyLinux/release", "Host/RockyLinux/rpm-list", "Host/cpu");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/RockyLinux/release');
if (isnull(os_release) || 'Rocky Linux' >!< os_release) audit(AUDIT_OS_NOT, 'Rocky Linux');
var os_ver = pregmatch(pattern: "Rocky(?: Linux)? release ([0-9]+(\.[0-9]+)?)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'Rocky Linux');
os_ver = os_ver[1];
if (! preg(pattern:"^8([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Rocky Linux 8.x', 'Rocky Linux ' + os_ver);
if (!get_kb_item('Host/RockyLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Rocky Linux', cpu);
var pkgs = [
{'reference':'libslirp-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debuginfo-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-debugsource-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.4.0+556+40122d08', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.5.0+709+440d5e7e', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.6.0+783+10209741', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.6.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'aarch64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'libslirp-devel-4.3.1-1.module+el8.7.0+1076+9b1c11c1', 'cpu':'x86_64', 'release':'8', 'el_string':'el8.7.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python-podman-api-1.2.0-0.2.gitd0a45fe.module+el8.4.0+559+c02fa3b2', 'release':'8', 'el_string':'el8.4.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python-podman-api-1.2.0-0.2.gitd0a45fe.module+el8.5.0+708+6758137d', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'python-podman-api-1.2.0-0.2.gitd0a45fe.module+el8.5.0+770+e2f49861', 'release':'8', 'el_string':'el8.5.0', 'rpm_spec_vers_cmp':TRUE},
{'reference':'toolbox-0.0.8-1.module+el8.4.0+556+40122d08', 'release':'8', 'rpm_spec_vers_cmp':TRUE}
];
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var el_string = NULL;
var rpm_spec_vers_cmp = NULL;
var epoch = NULL;
var allowmaj = NULL;
var exists_check = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = 'Rocky-' + package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libslirp / libslirp-debuginfo / libslirp-debugsource / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
rocky | linux | libslirp | p-cpe:/a:rocky:linux:libslirp |
rocky | linux | libslirp-debuginfo | p-cpe:/a:rocky:linux:libslirp-debuginfo |
rocky | linux | libslirp-debugsource | p-cpe:/a:rocky:linux:libslirp-debugsource |
rocky | linux | libslirp-devel | p-cpe:/a:rocky:linux:libslirp-devel |
rocky | linux | python-podman-api | p-cpe:/a:rocky:linux:python-podman-api |
rocky | linux | toolbox | p-cpe:/a:rocky:linux:toolbox |
rocky | linux | 8 | cpe:/o:rocky:linux:8 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10749
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10756
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-14040
bugzilla.redhat.com/show_bug.cgi?id=1682970
bugzilla.redhat.com/show_bug.cgi?id=1752079
bugzilla.redhat.com/show_bug.cgi?id=1785242
bugzilla.redhat.com/show_bug.cgi?id=1800815
bugzilla.redhat.com/show_bug.cgi?id=1801874
bugzilla.redhat.com/show_bug.cgi?id=1804193
bugzilla.redhat.com/show_bug.cgi?id=1804195
bugzilla.redhat.com/show_bug.cgi?id=1813845
bugzilla.redhat.com/show_bug.cgi?id=1814928
bugzilla.redhat.com/show_bug.cgi?id=1818694
bugzilla.redhat.com/show_bug.cgi?id=1821193
bugzilla.redhat.com/show_bug.cgi?id=1822038
bugzilla.redhat.com/show_bug.cgi?id=1825789
bugzilla.redhat.com/show_bug.cgi?id=1827794
bugzilla.redhat.com/show_bug.cgi?id=1833220
bugzilla.redhat.com/show_bug.cgi?id=1835986
bugzilla.redhat.com/show_bug.cgi?id=1837755
bugzilla.redhat.com/show_bug.cgi?id=1847544
bugzilla.redhat.com/show_bug.cgi?id=1849557
bugzilla.redhat.com/show_bug.cgi?id=1850230
bugzilla.redhat.com/show_bug.cgi?id=1853230
bugzilla.redhat.com/show_bug.cgi?id=1853652
bugzilla.redhat.com/show_bug.cgi?id=1857606
bugzilla.redhat.com/show_bug.cgi?id=1858862
bugzilla.redhat.com/show_bug.cgi?id=1860126
bugzilla.redhat.com/show_bug.cgi?id=1866153
bugzilla.redhat.com/show_bug.cgi?id=1866833
bugzilla.redhat.com/show_bug.cgi?id=1867447
bugzilla.redhat.com/show_bug.cgi?id=1868612
bugzilla.redhat.com/show_bug.cgi?id=1872263
bugzilla.redhat.com/show_bug.cgi?id=1877463
bugzilla.redhat.com/show_bug.cgi?id=1879622
errata.rockylinux.org/RLSA-2020:4694