SUSE: Security Advisory (SUSE-SU-2021:1177-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2021.1177.1");
  script_cve_id("CVE-2019-18814", "CVE-2019-19769", "CVE-2020-27170", "CVE-2020-27171", "CVE-2020-27815", "CVE-2020-35519", "CVE-2021-27363", "CVE-2021-27364", "CVE-2021-27365", "CVE-2021-28038", "CVE-2021-28375", "CVE-2021-28660", "CVE-2021-28688", "CVE-2021-28964", "CVE-2021-28971", "CVE-2021-28972", "CVE-2021-29264", "CVE-2021-29265", "CVE-2021-29647", "CVE-2021-3428", "CVE-2021-3444");
  script_tag(name:"creation_date", value:"2021-06-09 14:56:40 +0000 (Wed, 09 Jun 2021)");
  script_version("2024-02-02T14:37:50+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:50 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"8.3");
  script_tag(name:"cvss_base_vector", value:"AV:A/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:"2022-09-12 03:54:00 +0000 (Mon, 12 Sep 2022)");

  script_name("SUSE: Security Advisory (SUSE-SU-2021:1177-1)");
  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\.0SP2)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2021:1177-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2021/suse-su-20211177-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2021:1177-1 advisory.");

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

  script_tag(name:"insight", value:"The SUSE Linux Enterprise 15 SP2 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

CVE-2021-3444: Fixed an issue with the bpf verifier which did not
 properly handle mod32 destination register truncation when the source
 register was known to be 0 leading to out of bounds read (bsc#1184170).

CVE-2021-3428: Fixed an integer overflow in ext4_es_cache_extent
 (bsc#1173485).

CVE-2021-29647: Fixed an issue in qrtr_recvmsg which could have allowed
 attackers to obtain sensitive information from kernel memory because of
 a partially uninitialized data structure (bsc#1184192 ).

CVE-2021-29265: Fixed an issue in usbip_sockfd_store which could have
 allowed attackers to cause a denial of service due to race conditions
 during an update of the local and shared status (bsc#1184167).

CVE-2021-29264: Fixed an issue in the Freescale Gianfar Ethernet driver
 which could have allowed attackers to cause a system crash due to a
 calculation of negative fragment size (bsc#1184168).

CVE-2021-28972: Fixed a user-tolerable buffer overflow when writing a
 new device name to the driver from userspace, allowing userspace to
 write data to the kernel stack frame directly (bsc#1184198).

CVE-2021-28971: Fixed an issue in intel_pmu_drain_pebs_nhm which could
 have caused a system crash because the PEBS status in a PEBS record was
 mishandled (bsc#1184196 ).

CVE-2021-28964: Fixed a race condition in get_old_root which could have
 allowed attackers to cause a denial of service (bsc#1184193).

CVE-2021-28688: Fixed an issue introduced by XSA-365 (bsc#1183646).

CVE-2021-28660: Fixed an out of bounds write in rtw_wx_set_scan
 (bsc#1183593 ).

CVE-2021-28375: Fixed an issue in fastrpc_internal_invoke which did not
 prevent user applications from sending kernel RPC messages (bsc#1183596).

CVE-2021-28038: Fixed an issue with the netback driver which was lacking
 necessary treatment of errors such as failed memory allocations
 (bsc#1183022).

CVE-2021-27365: Fixed an issue where an unprivileged user can send a
 Netlink message that is associated with iSCSI, and has a length up to
 the maximum length of a Netlink message (bsc#1182715).

CVE-2021-27364: Fixed an issue where an attacker could craft Netlink
 messages (bsc#1182717).

CVE-2021-27363: Fixed a kernel pointer leak which could have been used
 to determine the address of the iscsi_transport structure (bsc#1182716).

CVE-2020-35519: Fixed an out-of-bounds memory access was found in
 x25_bind (bsc#1183696).

CVE-2020-27815: Fixed an issue in JFS filesystem where could have
 allowed an attacker to execute code (bsc#1179454).

CVE-2020-27171: Fixed an off-by-one error affecting out-of-bounds
 speculation on pointer arithmetic, leading to side-channel attacks that
 defeat Spectre mitigations and obtain sensitive information from kernel
 memory (bsc#1183775).

CVE-2020-27170: Fixed potential ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'Linux Kernel' package(s) on SUSE Linux Enterprise Module for Public Cloud 15-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 == "SLES15.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"kernel-azure", rpm:"kernel-azure~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-azure-debuginfo", rpm:"kernel-azure-debuginfo~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-azure-debugsource", rpm:"kernel-azure-debugsource~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-azure-devel", rpm:"kernel-azure-devel~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-azure-devel-debuginfo", rpm:"kernel-azure-devel-debuginfo~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel-azure", rpm:"kernel-devel-azure~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source-azure", rpm:"kernel-source-azure~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-syms-azure", rpm:"kernel-syms-azure~5.3.18~18.41.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

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

exit(0);