SUSE: Security Advisory (SUSE-SU-2017:0718-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2017.0718.1");
  script_cve_id("CVE-2014-8106", "CVE-2016-10013", "CVE-2016-10024", "CVE-2016-10155", "CVE-2016-9101", "CVE-2016-9776", "CVE-2016-9911", "CVE-2016-9921", "CVE-2016-9922", "CVE-2016-9932", "CVE-2017-2615", "CVE-2017-2620");
  script_tag(name:"creation_date", value:"2021-06-09 14:58:00 +0000 (Wed, 09 Jun 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:"9.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2018-09-06 14:31:12 +0000 (Thu, 06 Sep 2018)");

  script_name("SUSE: Security Advisory (SUSE-SU-2017:0718-1)");
  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\.0SP3)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2017:0718-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2017/suse-su-20170718-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2017:0718-1 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-2016-10155: The virtual hardware watchdog 'wdt_i6300esb' was
 vulnerable to a memory leakage issue allowing a privileged user to cause
 a DoS and/or potentially crash the Qemu process on the host (bsc#1024183)
- CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine
 cirrus_bitblt_cputovideo failed to check the memory region, allowing for
 an out-of-bounds write that allows for privilege escalation (bsc#1024834)
- CVE-2017-2615: An error in the bitblt copy operation could have allowed
 a malicious guest administrator to cause an out of bounds memory access,
 possibly leading to information disclosure or privilege escalation
 (bsc#1023004)
- CVE-2014-8106: A heap-based buffer overflow in the Cirrus VGA emulator
 allowed local guest users to execute arbitrary code via vectors related
 to blit regions (bsc#907805)
- CVE-2016-9911: The USB EHCI Emulation support was vulnerable to a memory
 leakage issue while processing packet data in 'ehci_init_transfer'. A
 guest user/process could have used this issue to leak host memory,
 resulting in DoS for the host (bsc#1014507)
- CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable
 to a divide by zero issue while copying VGA data. A privileged user
 inside guest could have used this flaw to crash the process instance on
 the host, resulting in DoS (bsc#1015169)
- CVE-2016-9922: The Cirrus CLGD 54xx VGA Emulator support was vulnerable
 to a divide by zero issue while copying VGA data. A privileged user
 inside guest could have used this flaw to crash the process instance on
 the host, resulting in DoS (bsc#1015169)
- CVE-2016-10013: Xen allowed local 64-bit x86 HVM guest OS users to gain
 privileges by leveraging mishandling of SYSCALL singlestep during
 emulation (bsc#1016340).
- CVE-2016-9932: CMPXCHG8B emulation on x86 systems allowed local HVM
 guest OS users to obtain sensitive information from host stack memory
 via a 'supposedly-ignored' operand size prefix (bsc#1012651).
- CVE-2016-9101: A memory leak in hw/net/eepro100.c allowed local guest OS
 administrators to cause a denial of service (memory consumption and QEMU
 process crash) by repeatedly unplugging an i8255x (PRO100) NIC device
 (bsc#1013668)
- CVE-2016-9776: The ColdFire Fast Ethernet Controller emulator support
 was vulnerable to an infinite loop issue while receiving packets in
 'mcf_fec_receive'. A privileged user/process inside guest could have
 used this issue to crash the Qemu process on the host leading to DoS
 (bsc#1013657)
- A malicious guest could have, by frequently rebooting over extended
 periods of time, run the host system out of memory, resulting in a
 Denial of Service (DoS) (bsc#1022871)
- CVE-2016-10024: Xen allowed local x86 PV guest OS kernel administrators
 to cause a denial of service (host hang or crash) by modifying the
 ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'xen' package(s) on SUSE Linux Enterprise Debuginfo 11-SP3, SUSE Linux Enterprise Point of Sale 11-SP3, SUSE Linux Enterprise Server 11-SP3, SUSE Manager 2.1, SUSE Manager Proxy 2.1, SUSE OpenStack Cloud 5.");

  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 == "SLES11.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.2.5_21~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-html", rpm:"xen-doc-html~4.2.5_21~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-doc-pdf", rpm:"xen-doc-pdf~4.2.5_21~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-default", rpm:"xen-kmp-default~4.2.5_21_3.0.101_0.47.96~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-kmp-pae", rpm:"xen-kmp-pae~4.2.5_21_3.0.101_0.47.96~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs-32bit", rpm:"xen-libs-32bit~4.2.5_21~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.2.5_21~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.2.5_21~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.2.5_21~35.1", rls:"SLES11.0SP3"))) {
    report += res;
  }

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

exit(0);