SUSE: Security Advisory (SUSE-SU-2018:1363-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2018.1363.1");
  script_cve_id("CVE-2017-5715", "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:"2.1");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:N/A:N");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2021-04-14 14:52:07 +0000 (Wed, 14 Apr 2021)");

  script_name("SUSE: Security Advisory (SUSE-SU-2018:1363-1)");
  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\.0SP1)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2018:1363-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2018/suse-su-20181363-1.html");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1068032");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1082276");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1092885");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2018-May/004067.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'qemu' package(s) announced via the SUSE-SU-2018:1363-1 advisory.");

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

  script_tag(name:"insight", value:"This update for qemu fixes several issues.

This security issue was fixed:

- CVE-2018-3639: Spectre v4 vulnerability mitigation support for KVM guests (bsc#1092885).

 Systems with microprocessors utilizing speculative execution and speculative
 execution of memory reads before the addresses of all prior memory writes are
 known may allow unauthorized disclosure of information to an attacker with
 local user access via a side-channel analysis.

 This patch permits the new x86 cpu feature flag named 'ssbd' to be
 presented to the guest, given that the host has this feature, and
 KVM exposes it to the guest as well.

 For this feature to be enabled please use the qemu commandline
 -cpu $MODEL,+spec-ctrl,+ssbd
 so the guest OS can take advantage of the feature.

 spec-ctrl and ssbd support is also required in the host.
- CVE-2017-5715: This update has the next round of Spectre v2 related patches,
 which now integrates with corresponding changes in libvirt. A January 2018
 release of qemu initially addressed the Spectre v2 vulnerability for KVM guests
 by exposing the spec-ctrl feature for all x86 vcpu types. We remove that
 initial patch and now rely on patches from upstream (bsc#1068032).

 This update defines spec_ctrl and ibpb cpu feature flags as well as new cpu
 models which are clones of existing models with either -IBRS or -IBPB added to
 the end of the model name. These new vcpu models explicitly include the new
 feature(s), whereas the feature flags can be added to the cpu parameter as with
 other features. In short, for continued Spectre v2 protection, ensure that
 either the appropriate cpu feature flag is added to the QEMU command-line, or
 one of the new cpu models is used. Although migration from older versions is
 supported, the new cpu features won't be properly exposed to the guest until it
 is restarted with the cpu features explicitly added. A reboot is insufficient.
- A patch is added to continue to detect Spectre v2 mitigation features (as
 shown by cpuid), and if found provide that feature to guests, even if running
 on older KVM (kernel) versions which do not yet expose that feature to QEMU.
 (bsc#1082276)");

  script_tag(name:"affected", value:"'qemu' 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 == "SLES12.0SP1") {

  if(!isnull(res = isrpmvuln(pkg:"qemu", rpm:"qemu~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-block-curl", rpm:"qemu-block-curl~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-block-rbd", rpm:"qemu-block-rbd~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-guest-agent", rpm:"qemu-guest-agent~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-ipxe", rpm:"qemu-ipxe~1.0.0~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm", rpm:"qemu-kvm~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-lang", rpm:"qemu-lang~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-ppc", rpm:"qemu-ppc~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-s390", rpm:"qemu-s390~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-seabios", rpm:"qemu-seabios~1.8.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-sgabios", rpm:"qemu-sgabios~8~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-tools", rpm:"qemu-tools~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-vgabios", rpm:"qemu-vgabios~1.8.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-x86", rpm:"qemu-x86~2.3.1~33.9.4", rls:"SLES12.0SP1"))) {
    report += res;
  }

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

exit(0);