SUSE: Security Advisory (SUSE-SU-2020:2105-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2020.2105.1");
  script_cve_id("CVE-2019-19462", "CVE-2019-20810", "CVE-2019-20812", "CVE-2020-0305", "CVE-2020-10135", "CVE-2020-10711", "CVE-2020-10732", "CVE-2020-10751", "CVE-2020-10766", "CVE-2020-10767", "CVE-2020-10768", "CVE-2020-10773", "CVE-2020-10781", "CVE-2020-12656", "CVE-2020-12769", "CVE-2020-12771", "CVE-2020-12888", "CVE-2020-13143", "CVE-2020-13974", "CVE-2020-14416", "CVE-2020-15393", "CVE-2020-15780");
  script_tag(name:"creation_date", value:"2021-06-09 14:56:58 +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:"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: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:"2020-07-24 17:31:00 +0000 (Fri, 24 Jul 2020)");

  script_name("SUSE: Security Advisory (SUSE-SU-2020:2105-1)");
  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-2020:2105-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2020/suse-su-20202105-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:2105-1 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 kernel was updated to receive various security and bugfixes.


The following security bugs were fixed:

CVE-2019-19462: relay_open in kernel/relay.c in the Linux kernel allowed
 local users to cause a denial of service (such as relay blockage) by
 triggering a NULL alloc_percpu result (bnc#1158265).

CVE-2019-20810: Fixed a memory leak in go7007_snd_init in
 drivers/media/usb/go7007/snd-go7007.c because it did not call
 snd_card_free for a failure path (bnc#1172458).

CVE-2019-20812: An issue was discovered in the prb_calc_retire_blk_tmo()
 function in net/packet/af_packet.c could result in a denial of service
 (CPU consumption and soft lockup) in a certain failure case involving
 TPACKET_V3 (bnc#1172453).

CVE-2020-0305: In cdev_get of char_dev.c, there is a possible
 use-after-free due to a race condition. This could lead to local
 escalation of privilege with System execution privileges needed. User
 interaction is not needed for exploitation (bnc#1174462).

CVE-2020-10135: Legacy pairing and secure-connections pairing
 authentication in Bluetooth(r) BR/EDR Core Specification v5.2 and earlier
 may have allowed an unauthenticated user to complete authentication
 without pairing credentials via adjacent access. An unauthenticated,
 adjacent attacker could impersonate a Bluetooth BR/EDR master or slave
 to pair with a previously paired remote device to successfully complete
 the authentication procedure without knowing the link key (bnc#1171988).

CVE-2020-10711: A NULL pointer dereference flaw was found in the SELinux
 subsystem in versions This flaw occurs while importing the Commercial IP
 Security Option (CIPSO) protocol's category bitmap into the SELinux
 extensible bitmap via the' ebitmap_netlbl_import' routine. This flaw
 allowed a remote network user to crash the system kernel, resulting in a
 denial of service (bnc#1171191).

CVE-2020-10732: A flaw was found in the implementation of Userspace core
 dumps. This flaw allowed an attacker with a local account to crash a
 trivial program and exfiltrate private kernel data (bnc#1171220).

CVE-2020-10751: A flaw was found in the SELinux LSM hook implementation,
 where it incorrectly assumed that an skb would only contain a single
 netlink message. The hook would incorrectly only validate the first
 netlink message in the skb and allow or deny the rest of the messages
 within the skb with the granted permission without further processing
 (bnc#1171189).

CVE-2020-10766: Fixed an issue which allowed an attacker with a local
 account to disable SSBD protection (bnc#1172781).

CVE-2020-10767: Fixed an issue where Indirect Branch Prediction Barrier
 was disabled in certain circumstances, leaving the system open to a
 spectre v2 style attack (bnc#1172782).

CVE-2020-10768: Fixed an issue with the prctl() function, where indirect
 branch speculation could be enabled even though it was disabled ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'Linux Kernel' package(s) on SUSE Linux Enterprise High Availability 15-SP2, SUSE Linux Enterprise Module for Basesystem 15-SP2, SUSE Linux Enterprise Module for Development Tools 15-SP2, SUSE Linux Enterprise Module for Legacy Software 15-SP2, SUSE Linux Enterprise Module for Live Patching 15-SP2, SUSE Linux Enterprise Workstation Extension 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-default", rpm:"kernel-default~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base", rpm:"kernel-default-base~5.3.18~24.9.1.9.2.6", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debuginfo", rpm:"kernel-default-debuginfo~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debugsource", rpm:"kernel-default-debugsource~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel", rpm:"kernel-default-devel~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel-debuginfo", rpm:"kernel-default-devel-debuginfo~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-macros", rpm:"kernel-macros~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-preempt", rpm:"kernel-preempt~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-preempt-debuginfo", rpm:"kernel-preempt-debuginfo~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-preempt-debugsource", rpm:"kernel-preempt-debugsource~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-docs", rpm:"kernel-docs~5.3.18~24.9.2", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-obs-build", rpm:"kernel-obs-build~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-obs-build-debugsource", rpm:"kernel-obs-build-debugsource~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-preempt-devel", rpm:"kernel-preempt-devel~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-preempt-devel-debuginfo", rpm:"kernel-preempt-devel-debuginfo~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source", rpm:"kernel-source~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-syms", rpm:"kernel-syms~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"reiserfs-kmp-default", rpm:"reiserfs-kmp-default~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"reiserfs-kmp-default-debuginfo", rpm:"reiserfs-kmp-default-debuginfo~5.3.18~24.9.1", rls:"SLES15.0SP2"))) {
    report += res;
  }

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

exit(0);