SUSE: Security Advisory (SUSE-SU-2019:1532-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2019.1532.1");
  script_cve_id("CVE-2018-17972", "CVE-2018-7191", "CVE-2019-11190", "CVE-2019-11477", "CVE-2019-11478", "CVE-2019-11479", "CVE-2019-11486", "CVE-2019-11815", "CVE-2019-11833", "CVE-2019-11884", "CVE-2019-12382", "CVE-2019-3846", "CVE-2019-5489");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 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:"9.3");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:A/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:"2019-06-04 19:53:50 +0000 (Tue, 04 Jun 2019)");

  script_name("SUSE: Security Advisory (SUSE-SU-2019:1532-1)");
  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=(SLES12\.0SP3)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2019:1532-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2019/suse-su-20191532-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2019:1532-1 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 12 SP3 kernel was updated to 4.4.180 to receive various security and bugfixes.

The following security bugs were fixed:
CVE-2019-11477: A sequence of SACKs may have been crafted such that one
 can trigger an integer overflow, leading to a kernel panic.

CVE-2019-11478: It was possible to send a crafted sequence of SACKs
 which will fragment the TCP retransmission queue. An attacker may have
 been able to further exploit the fragmented queue to cause an expensive
 linked-list walk for subsequent SACKs received for that same TCP
 connection.

CVE-2019-11479: An attacker could force the Linux kernel to segment its
 responses into multiple TCP segments. This would drastically increased
 the bandwidth required to deliver the same amount of data. Further, it
 would consume additional resources such as CPU and NIC processing power.

CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and
 possibly escalate privileges was found in the mwifiex kernel module
 while connecting to a malicious wireless network. (bnc#1136424)

CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in
 drivers/gpu/drm/drm_edid_load.c in the Linux kernel, there was an
 unchecked kstrdup of fwstr, which might have allowed an attacker to
 cause a denial of service (NULL pointer dereference and system crash).
 (bnc#1136586)

CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux
 kernel allowed local attackers to observe page cache access patterns of
 other processes on the same system, potentially allowing sniffing of
 secret information. (Fixing this affects the output of the fincore
 program.) Limited remote exploitation may have been possible, as
 demonstrated by latency differences in accessing public files from an
 Apache HTTP Server. (bnc#1120843)

CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out
 the unused memory region in the extent tree block, which might have
 allowed local users to obtain sensitive information by reading
 uninitialized data in the filesystem. (bnc#1135281)

CVE-2018-7191: In the tun subsystem in the Linux kernel,
 dev_get_valid_name was not called before register_netdevice. This
 allowed local users to cause a denial of service (NULL pointer
 dereference and panic) via an ioctl(TUNSETIFF) call with a dev name
 containing a / character. (bnc#1135603)

CVE-2019-11190: The Linux kernel allowed local users to bypass ASLR on
 setuid programs (such as /bin/su) because install_exec_creds() was
 called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the
 ptrace_may_access() check had a race condition when reading
 /proc/pid/stat. (bnc#1132472)

CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in
 net/rds/tcp.c in the Linux kernel There was a race condition leading to
 a use-after-free, related to net namespace cleanup. (bnc#1134537)

CVE-2019-11884: The do_hidp_sock_ioctl ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'Linux Kernel' package(s) on SUSE CaaS Platform 3.0, SUSE CaaS Platform ALL, SUSE Linux Enterprise Desktop 12-SP3, SUSE Linux Enterprise High Availability 12-SP3, SUSE Linux Enterprise Live Patching 12-SP3, SUSE Linux Enterprise Server 12-SP3, SUSE Linux Enterprise Software Development Kit 12-SP3, SUSE Linux Enterprise Workstation Extension 12-SP3.");

  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 == "SLES12.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"kernel-default", rpm:"kernel-default~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base", rpm:"kernel-default-base~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base-debuginfo", rpm:"kernel-default-base-debuginfo~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debuginfo", rpm:"kernel-default-debuginfo~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debugsource", rpm:"kernel-default-debugsource~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel", rpm:"kernel-default-devel~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-man", rpm:"kernel-default-man~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-macros", rpm:"kernel-macros~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source", rpm:"kernel-source~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-syms", rpm:"kernel-syms~4.4.180~94.97.1", rls:"SLES12.0SP3"))) {
    report += res;
  }

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

exit(0);