SUSE: Security Advisory (SUSE-SU-2018:1375-1)

# SPDX-FileCopyrightText: 2021 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.1.4.2018.1375.1");
  script_cve_id("CVE-2018-1000199", "CVE-2018-10675", "CVE-2018-3639");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
  script_version("2025-08-15T15:42:25+0000");
  script_tag(name:"last_modification", value:"2025-08-15 15:42:25 +0000 (Fri, 15 Aug 2025)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-06-07 15:55:59 +0000 (Thu, 07 Jun 2018)");

  script_name("SUSE: Security Advisory (SUSE-SU-2018:1375-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("SuSE Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/suse_sles", "ssh/login/rpms", re:"ssh/login/release=(SLES12\.0|SLES12\.0SP1)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2018:1375-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2018/suse-su-20181375-1.html");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1087082");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1087845");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1089895");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1091755");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1092497");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1093215");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1094019");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/985025");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2018-May/004077.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2018:1375-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"The SUSE Linux Enterprise 12 SP1 LTSS kernel was updated to receive various security and bugfixes.


The following security bugs were fixed:

- CVE-2018-3639: Information leaks using 'Memory Disambiguation' feature
 in modern CPUs were mitigated, aka 'Spectre Variant 4' (bnc#1087082).

 A new boot commandline option was introduced,
 'spec_store_bypass_disable', which can have following values:

 - auto: Kernel detects whether your CPU model contains an implementation
 of Speculative Store Bypass and picks the most appropriate mitigation.
 - on: disable Speculative Store Bypass
 - off: enable Speculative Store Bypass
 - prctl: Control Speculative Store Bypass per thread via
 prctl. Speculative Store Bypass is enabled for a process by default. The
 state of the control is inherited on fork.
 - seccomp: Same as 'prctl' above, but all seccomp threads will disable
 SSB unless they explicitly opt out.

 The default is 'seccomp', meaning programs need explicit opt-in into the mitigation.

 Status can be queried via the /sys/devices/system/cpu/vulnerabilities/spec_store_bypass file, containing:

 - 'Vulnerable'
 - 'Mitigation: Speculative Store Bypass disabled'
 - 'Mitigation: Speculative Store Bypass disabled via prctl'
 - 'Mitigation: Speculative Store Bypass disabled via prctl and seccomp'

- CVE-2018-1000199: An address corruption flaw was discovered while
 modifying a h/w breakpoint via 'modify_user_hw_breakpoint' routine, an
 unprivileged user/process could use this flaw to crash the system kernel
 resulting in DoS OR to potentially escalate privileges on a the system. (bsc#1089895)
- CVE-2018-10675: The do_get_mempolicy function in mm/mempolicy.c allowed
 local users to cause a denial of service (use-after-free) or possibly
 have unspecified other impact via crafted system calls (bnc#1091755).

The following non-security bugs were fixed:

- x86/bugs: Make sure that _TIF_SSBD does not end up in _TIF_ALLWORK_MASK (bsc#1093215).
- x86/bugs: correctly force-disable IBRS on !SKL systems (bsc#1092497).
- x86/cpu/intel: Introduce macros for Intel family numbers (bsc#985025).
- x86/speculation: Remove Skylake C2 from Speculation Control microcode blacklist (bsc#1087845).");

  script_tag(name:"affected", value:"'Linux Kernel' package(s) on SUSE Linux Enterprise Server 12-SP1, SUSE Linux Enterprise Server for SAP Applications 12-SP1.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-rpm.inc");

release = rpm_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "SLES12.0") {

  if(!isnull(res = isrpmvuln(pkg:"kernel-ec2", rpm:"kernel-ec2~3.12.74~60.64.93.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-ec2-debuginfo", rpm:"kernel-ec2-debuginfo~3.12.74~60.64.93.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-ec2-debugsource", rpm:"kernel-ec2-debugsource~3.12.74~60.64.93.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-ec2-devel", rpm:"kernel-ec2-devel~3.12.74~60.64.93.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-ec2-extra", rpm:"kernel-ec2-extra~3.12.74~60.64.93.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-ec2-extra-debuginfo", rpm:"kernel-ec2-extra-debuginfo~3.12.74~60.64.93.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "SLES12.0SP1") {

  if(!isnull(res = isrpmvuln(pkg:"kernel-default", rpm:"kernel-default~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base", rpm:"kernel-default-base~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel", rpm:"kernel-default-devel~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-man", rpm:"kernel-default-man~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-macros", rpm:"kernel-macros~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source", rpm:"kernel-source~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-syms", rpm:"kernel-syms~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-xen", rpm:"kernel-xen~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-xen-base", rpm:"kernel-xen-base~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-xen-devel", rpm:"kernel-xen-devel~3.12.74~60.64.93.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-3_12_74-60_64_93-default", rpm:"kgraft-patch-3_12_74-60_64_93-default~1~2.5.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kgraft-patch-3_12_74-60_64_93-xen", rpm:"kgraft-patch-3_12_74-60_64_93-xen~1~2.5.1", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);