SUSE: Security Advisory (SUSE-SU-2016:2528-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2016.2528.1");
  script_cve_id("CVE-2014-3615", "CVE-2014-3672", "CVE-2016-3158", "CVE-2016-3159", "CVE-2016-3710", "CVE-2016-3960", "CVE-2016-4001", "CVE-2016-4002", "CVE-2016-4439", "CVE-2016-4441", "CVE-2016-4480", "CVE-2016-5238", "CVE-2016-5338", "CVE-2016-6258", "CVE-2016-7092", "CVE-2016-7094");
  script_tag(name:"creation_date", value:"2021-06-09 14:58:04 +0000 (Wed, 09 Jun 2021)");
  script_version("2024-02-02T14:37:48+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:48 +0000 (Fri, 02 Feb 2024)");
  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:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2016-08-03 17:12:23 +0000 (Wed, 03 Aug 2016)");

  script_name("SUSE: Security Advisory (SUSE-SU-2016:2528-1)");
  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=(SLES11\.0SP2)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2016:2528-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2016/suse-su-20162528-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2016:2528-1 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-2016-7094: Buffer overflow in Xen allowed local x86 HVM guest OS
 administrators on guests running with shadow paging to cause a denial of
 service via a pagetable update (bsc#995792)
- CVE-2016-7092: The get_page_from_l3e function in arch/x86/mm.c in Xen
 allowed local 32-bit PV guest OS administrators to gain host OS
 privileges via vectors related to L3 recursive pagetables (bsc#995785)
- CVE-2016-6258: The PV pagetable code in arch/x86/mm.c in Xen allowed
 local 32-bit PV guest OS administrators to gain host OS privileges by
 leveraging fast-paths for updating pagetable entries (bsc#988675)
- CVE-2016-5338: The (1) esp_reg_read and (2) esp_reg_write functions
 allowed local guest OS administrators to cause a denial of service (QEMU
 process crash) or execute arbitrary code on the host via vectors related
 to the information transfer buffer (bsc#983984)
- CVE-2016-5238: The get_cmd function in hw/scsi/esp.c might have allowed
 local guest OS administrators to cause a denial of service
 (out-of-bounds write and QEMU process crash) via vectors related to
 reading from the information transfer buffer in non-DMA mode (bsc#982960)
- CVE-2014-3672: The qemu implementation in libvirt Xen allowed local
 guest OS users to cause a denial of service (host disk consumption) by
 writing to stdout or stderr (bsc#981264)
- CVE-2016-4441: The get_cmd function in the 53C9X Fast SCSI Controller
 (FSC) support did not properly check DMA length, which allowed local
 guest OS administrators to cause a denial of service (out-of-bounds
 write and QEMU process crash) via unspecified vectors, involving an SCSI
 command (bsc#980724)
- CVE-2016-4439: The esp_reg_write function in the 53C9X Fast SCSI
 Controller (FSC) support did not properly check command buffer length,
 which allowed local guest OS administrators to cause a denial of service
 (out-of-bounds write and QEMU process crash) or potentially execute
 arbitrary code on the host via unspecified vectors (bsc#980716)
- CVE-2016-3710: The VGA module improperly performed bounds checking on
 banked access to video memory, which allowed local guest OS
 administrators to execute arbitrary code on the host by changing access
 modes after setting the bank register, aka the 'Dark Portal' issue
 (bsc#978164)
- CVE-2016-4480: The guest_walk_tables function in
 arch/x86/mm/guest_walk.c in Xen did not properly handle the Page Size
 (PS) page table entry bit at the L4 and L3 page table levels, which
 might have allowed local guest OS users to gain privileges via a crafted
 mapping of memory (bsc#978295)
- CVE-2016-3960: Integer overflow in the x86 shadow pagetable code allowed
 local guest OS users to cause a denial of service (host crash) or
 possibly gain privileges by shadowing a superpage mapping (bsc#974038)
- CVE-2016-3158: The xrstor function did not properly ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'xen' package(s) on SUSE Linux Enterprise Server 11-SP2.");

  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 == "SLES11.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-devel", rpm:"xen-devel~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-pdf", rpm:"xen-doc-pdf~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-default", rpm:"xen-kmp-default~4.1.6_08_3.0.101_0.7.40~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-pae", rpm:"xen-kmp-pae~4.1.6_08_3.0.101_0.7.40~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-trace", rpm:"xen-kmp-trace~4.1.6_08_3.0.101_0.7.40~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.1.6_08~29.1", rls:"SLES11.0SP2"))) {
    report += res;
  }

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

exit(0);