The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:2808-1 advisory.
Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage. (CVE-2021-26341)
When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds. (CVE-2021-33655)
When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
(CVE-2021-33656)
An out-of-bounds read flaw was found in the Linux kernel’s TeleTYpe subsystem. The issue occurs in how a user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read unauthorized random data from memory. (CVE-2022-1462)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2022:2808-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(164139);
script_version("1.6");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/07/14");
script_cve_id(
"CVE-2021-26341",
"CVE-2021-33655",
"CVE-2021-33656",
"CVE-2022-1462"
);
script_xref(name:"SuSE", value:"SUSE-SU-2022:2808-1");
script_name(english:"SUSE SLES12 Security Update : kernel (SUSE-SU-2022:2808-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as
referenced in the SUSE-SU-2022:2808-1 advisory.
- Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result
in data leakage. (CVE-2021-26341)
- When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of
bounds. (CVE-2021-33655)
- When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.
(CVE-2021-33656)
- An out-of-bounds read flaw was found in the Linux kernel's TeleTYpe subsystem. The issue occurs in how a
user triggers a race condition using ioctls TIOCSPTLCK and TIOCGPTPEER and TIOCSTI and TCXONC with leakage
of memory in the flush_to_ldisc function. This flaw allows a local user to crash the system or read
unauthorized random data from memory. (CVE-2022-1462)
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://bugzilla.suse.com/1195775");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1195926");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1198484");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1198829");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1200442");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201050");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201635");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201636");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201926");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1201930");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-26341");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-33655");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2021-33656");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2022-1462");
# https://lists.suse.com/pipermail/sle-security-updates/2022-August/011913.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?5ef2de31");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:P/AC:L/PR:N/UI:N/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-2022-1462");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2021-33656");
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:"2022/03/11");
script_set_attribute(attribute:"patch_publication_date", value:"2022/08/15");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/08/16");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:cluster-md-kmp-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:dlm-kmp-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:gfs2-kmp-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-base");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-kgraft");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-kgraft-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-default-man");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-macros");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-source");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kernel-syms");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-95_105-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:ocfs2-kmp-default");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
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/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);
var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP4", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(4)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP4", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'kernel-default-4.12.14-95.105.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'kernel-default-base-4.12.14-95.105.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'kernel-default-devel-4.12.14-95.105.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'kernel-devel-4.12.14-95.105.1', 'sp':'4', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'kernel-macros-4.12.14-95.105.1', 'sp':'4', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'kernel-source-4.12.14-95.105.1', 'sp':'4', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'kernel-syms-4.12.14-95.105.1', 'sp':'4', 'cpu':'x86_64', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.4']},
{'reference':'cluster-md-kmp-default-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-12.4', 'sle-ha-release-12.4', 'sles-release-12.4']},
{'reference':'dlm-kmp-default-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-12.4', 'sle-ha-release-12.4', 'sles-release-12.4']},
{'reference':'gfs2-kmp-default-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-12.4', 'sle-ha-release-12.4', 'sles-release-12.4']},
{'reference':'ocfs2-kmp-default-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLE_HPC-release-12.4', 'sle-ha-release-12.4', 'sles-release-12.4']},
{'reference':'kernel-default-kgraft-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.4']},
{'reference':'kernel-default-kgraft-devel-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.4']},
{'reference':'kgraft-patch-4_12_14-95_105-default-1-6.3.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-live-patching-release-12.4']},
{'reference':'kernel-default-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'kernel-default-base-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'kernel-default-devel-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'kernel-default-man-4.12.14-95.105.1', 'sp':'4', 'cpu':'s390x', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'kernel-devel-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'kernel-macros-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'kernel-source-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']},
{'reference':'kernel-syms-4.12.14-95.105.1', 'sp':'4', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.4']}
];
var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var exists_check = NULL;
var rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = 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['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && _release) {
if (exists_check) {
var check_flag = 0;
foreach var check (exists_check) {
if (!rpm_exists(release:_release, rpm:check)) continue;
if ('ltss' >< tolower(check)) ltss_caveat_required = TRUE;
check_flag++;
}
if (!check_flag) continue;
}
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
}
if (flag)
{
var ltss_plugin_caveat = NULL;
if(ltss_caveat_required) ltss_plugin_caveat = '\n' +
'NOTE: This vulnerability check contains fixes that apply to\n' +
'packages only available in SUSE Enterprise Linux Server LTSS\n' +
'repositories. Access to these package security updates require\n' +
'a paid SUSE LTSS subscription.\n';
security_report_v4(
port : 0,
severity : SECURITY_NOTE,
extra : rpm_report_get() + ltss_plugin_caveat
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26341
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33655
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-33656
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-1462
www.nessus.org/u?5ef2de31
bugzilla.suse.com/1195775
bugzilla.suse.com/1195926
bugzilla.suse.com/1198484
bugzilla.suse.com/1198829
bugzilla.suse.com/1200442
bugzilla.suse.com/1201050
bugzilla.suse.com/1201635
bugzilla.suse.com/1201636
bugzilla.suse.com/1201926
bugzilla.suse.com/1201930
www.suse.com/security/cve/CVE-2021-26341
www.suse.com/security/cve/CVE-2021-33655
www.suse.com/security/cve/CVE-2021-33656
www.suse.com/security/cve/CVE-2022-1462