SUSE: Security Advisory (SUSE-SU-2017:1148-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2017.1148.1");
  script_cve_id("CVE-2017-7718", "CVE-2017-7980");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
  script_version("2024-02-02T14:37:49+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:49 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"4.6");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/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:"2017-07-31 16:52:57 +0000 (Mon, 31 Jul 2017)");

  script_name("SUSE: Security Advisory (SUSE-SU-2017:1148-1)");
  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)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2017:1148-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2017/suse-su-20171148-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2017:1148-1 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 xen fixes several issues.
These security issues were fixed:
- CVE-2017-7980: An out-of-bounds r/w access issues in the Cirrus CLGD
 54xx VGA Emulator support allowed privileged user inside guest to use
 this flaw to crash the Qemu process resulting in DoS or potentially
 execute arbitrary code on a host with privileges of Qemu process on the
 host (bsc#1035483).
- A malicious 64-bit PV guest may be able to access all of system memory,
 allowing for all of privilege escalation, host crashes, and information
 leaks by placing a IRET hypercall in the middle of a multicall batch
 (XSA-213, bsc#1034843)
- A malicious pair of guests may be able to access all of system memory,
 allowing for all of privilege escalation, host crashes, and information
 leaks because of a missing check when transfering pages via
 GNTTABOP_transfer (XSA-214, bsc#1034844).
- Incorrect checks when handling exceptions allowed a malicious or buggy
 64-bit PV guest to modify part of a physical memory page not belonging
 to it, potentially allowing for all of privilege escalation, host or
 other guest crashes, and information leaks (XSA-215, bsc#1034845)
- CVE-2017-7718: hw/display/cirrus_vga_rop.h allowed local guest OS
 privileged users to cause a denial of service (out-of-bounds read and
 QEMU process crash) via vectors related to copying VGA data via the
 cirrus_bitblt_rop_fwd_transp_ and cirrus_bitblt_rop_fwd_ functions
 (bsc#1034994).
This non-security issue was fixed:
- bsc#1029827: Additional xenstore fixes");

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

  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:"xen", rpm:"xen~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-debugsource", rpm:"xen-debugsource~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-default", rpm:"xen-kmp-default~4.4.4_18_k3.12.61_52.69~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-default-debuginfo", rpm:"xen-kmp-default-debuginfo~4.4.4_18_k3.12.61_52.69~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo-32bit", rpm:"xen-libs-debuginfo-32bit~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-debuginfo", rpm:"xen-libs-debuginfo~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-debuginfo", rpm:"xen-tools-debuginfo~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU-debuginfo", rpm:"xen-tools-domU-debuginfo~4.4.4_18~22.39.1", rls:"SLES12.0"))) {
    report += res;
  }

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

exit(0);