SUSE: Security Advisory (SUSE-SU-2021:3977-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2021.3977.1");
  script_cve_id("CVE-2021-28701", "CVE-2021-28702", "CVE-2021-28704", "CVE-2021-28705", "CVE-2021-28706", "CVE-2021-28707", "CVE-2021-28708", "CVE-2021-28709");
  script_tag(name:"creation_date", value:"2021-12-10 07:47:33 +0000 (Fri, 10 Dec 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:"7.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/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:"2021-12-01 14:16:28 +0000 (Wed, 01 Dec 2021)");

  script_name("SUSE: Security Advisory (SUSE-SU-2021:3977-1)");
  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=(SLES15\.0SP1)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2021:3977-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2021/suse-su-20213977-1.html");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1027519");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1189632");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1191363");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1192554");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1192557");
  script_xref(name:"URL", value:"https://bugzilla.suse.com/1192559");
  script_xref(name:"URL", value:"https://lists.suse.com/pipermail/sle-security-updates/2021-December/009874.html");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2021:3977-1 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 the following issues:

- CVE-2021-28701: Fixed race condition in XENMAPSPACE_grant_table handling (XSA-384) (bsc#1189632).
- CVE-2021-28702: Fixed PCI devices with RMRRs not deassigned correctly (XSA-386) (bsc#1191363).
- CVE-2021-28704, CVE-2021-28707, CVE-2021-28708: Fixed PoD operations on misaligned GFNs (XSA-388) (bsc#1192557).
- CVE-2021-28705, CVE-2021-28709: Fixed issues with partially successful P2M updates on x86 (XSA-389) (bsc#1192559).
- CVE-2021-28706: Fixed guests may exceed their designated memory limit (XSA-385) (bsc#1192554).

- Upstream bug fixes (bsc#1027519)");

  script_tag(name:"affected", value:"'xen' package(s) on SUSE Linux Enterprise Server 15-SP1, SUSE Linux Enterprise Server for SAP Applications 15-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 == "SLES15.0SP1") {

  if(!isnull(res = isrpmvuln(pkg:"xen", rpm:"xen~4.12.4_16~3.57.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-devel", rpm:"xen-devel~4.12.4_16~3.57.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-libs", rpm:"xen-libs~4.12.4_16~3.57.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools", rpm:"xen-tools~4.12.4_16~3.57.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"xen-tools-domU", rpm:"xen-tools-domU~4.12.4_16~3.57.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

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

exit(0);