CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
28.1%
This update for the Linux Kernel 3.12.61-52_89 fixes several issues.
The following security issues were fixed :
CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system (bsc#1099306).
CVE-2017-11600: net/xfrm/xfrm_policy.c did not ensure that the dir value of xfrm_userpolicy_id is XFRM_POLICY_MAX or less, which allowed local users to cause a denial of service (out-of-bounds access) or possibly have unspecified other impact via an XFRM_MSG_MIGRATE xfrm Netlink message (bsc#1096564)
CVE-2018-10853: A flaw was found in kvm. In which certain instructions such as sgdt/sidt call segmented_write_std didn’t propagate access correctly.
As such, during userspace induced exception, the guest can incorrectly assume that the exception happened in the kernel and panic. (bsc#1097108).
Note that Tenable Network Security has extracted the preceding description block directly from the SUSE 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 SUSE update advisory SUSE-SU-2018:2352-1.
# The text itself is copyright (C) SUSE.
#
include('compat.inc');
if (description)
{
script_id(111823);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/19");
script_cve_id("CVE-2017-11600", "CVE-2018-10853", "CVE-2018-3646");
script_name(english:"SUSE SLES12 Security Update : kernel (SUSE-SU-2018:2352-1) (Foreshadow)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"This update for the Linux Kernel 3.12.61-52_89 fixes several issues.
The following security issues were fixed :
- CVE-2018-3646: Local attackers in virtualized guest
systems could use speculative code patterns on
hyperthreaded processors to read data present in the L1
Datacache used by other hyperthreads on the same CPU
core, potentially leaking sensitive data, even from
other virtual machines or the host system (bsc#1099306).
- CVE-2017-11600: net/xfrm/xfrm_policy.c did not ensure
that the dir value of xfrm_userpolicy_id is
XFRM_POLICY_MAX or less, which allowed local users to
cause a denial of service (out-of-bounds access) or
possibly have unspecified other impact via an
XFRM_MSG_MIGRATE xfrm Netlink message (bsc#1096564)
- CVE-2018-10853: A flaw was found in kvm. In which
certain instructions such as sgdt/sidt call
segmented_write_std didn't propagate access correctly.
As such, during userspace induced exception, the guest
can incorrectly assume that the exception happened in
the kernel and panic. (bsc#1097108).
Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE 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://bugzilla.suse.com/show_bug.cgi?id=1096564");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1097108");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/show_bug.cgi?id=1099306");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2017-11600/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-10853/");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2018-3646/");
# https://www.suse.com/support/update/announcement/2018/suse-su-20182352-1/
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1d354aad");
script_set_attribute(attribute:"solution", value:
"To install this SUSE Security Update use the SUSE recommended
installation methods like YaST online_update or 'zypper patch'.
Alternatively you can run the command listed for your product :
SUSE Linux Enterprise Server 12-LTSS:zypper in -t patch
SUSE-SLE-SERVER-12-2018-1588=1");
script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/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:"cvss_score_source", value:"CVE-2017-11600");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2018-10853");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"in_the_news", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2017/07/24");
script_set_attribute(attribute:"patch_publication_date", value:"2018/08/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/08/17");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_61-52_89-default");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:kgraft-patch-3_12_61-52_89-xen");
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) 2018-2024 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("audit.inc");
include("global_settings.inc");
include("rpm.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLES12", "SUSE " + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);
if (cpu >!< "x86_64") audit(AUDIT_ARCH_NOT, "x86_64", cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);
flag = 0;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kgraft-patch-3_12_61-52_89-default-11-2.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", cpu:"x86_64", reference:"kgraft-patch-3_12_61-52_89-xen-11-2.1")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11600
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10853
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-3646
www.nessus.org/u?1d354aad
bugzilla.suse.com/show_bug.cgi?id=1096564
bugzilla.suse.com/show_bug.cgi?id=1097108
bugzilla.suse.com/show_bug.cgi?id=1099306
www.suse.com/security/cve/CVE-2017-11600/
www.suse.com/security/cve/CVE-2018-10853/
www.suse.com/security/cve/CVE-2018-3646/
CVSS2
Attack Vector
LOCAL
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
28.1%