SUSE: Security Advisory (SUSE-SU-2020:3544-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2020.3544.1");
  script_cve_id("CVE-2020-0404", "CVE-2020-0427", "CVE-2020-0430", "CVE-2020-0431", "CVE-2020-0432", "CVE-2020-12351", "CVE-2020-12352", "CVE-2020-14351", "CVE-2020-14381", "CVE-2020-14390", "CVE-2020-16120", "CVE-2020-2521", "CVE-2020-25212", "CVE-2020-25284", "CVE-2020-25285", "CVE-2020-25641", "CVE-2020-25643", "CVE-2020-25645", "CVE-2020-25656", "CVE-2020-25668", "CVE-2020-25704", "CVE-2020-25705", "CVE-2020-26088", "CVE-2020-27673", "CVE-2020-27675", "CVE-2020-8694");
  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:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:S/C:P/I:P/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:"2020-11-30 17:14:46 +0000 (Mon, 30 Nov 2020)");

  script_name("SUSE: Security Advisory (SUSE-SU-2020:3544-1)");
  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\.0SP4)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2020:3544-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2020/suse-su-20203544-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2020:3544-1 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 SP4 kernel was updated to receive various security and bug fixes.

The following security bugs were fixed:

CVE-2020-25705: A flaw in the way reply ICMP packets are limited in was
 found that allowed to quickly scan open UDP ports. This flaw allowed an
 off-path remote user to effectively bypassing source port UDP
 randomization. The highest threat from this vulnerability is to
 confidentiality and possibly integrity, because software and services
 that rely on UDP source port randomization (like DNS) are indirectly
 affected as well. Kernel versions may be vulnerable to this issue
 (bsc#1175721, bsc#1178782).

CVE-2020-25704: Fixed a memory leak in perf_event_parse_addr_filter()
 (bsc#1178393).

CVE-2020-25668: Fixed a use-after-free in con_font_op() (bnc#1178123).

CVE-2020-25656: Fixed a concurrency use-after-free in vt_do_kdgkb_ioctl
 (bnc#1177766).

CVE-2020-25285: Fixed a race condition between hugetlb sysctl handlers
 in mm/hugetlb.c (bnc#1176485).

CVE-2020-0430: Fixed an OOB read in skb_headlen of
 /include/linux/skbuff.h (bnc#1176723).

CVE-2020-14351: Fixed a race in the perf_mmap_close() function
 (bsc#1177086).

CVE-2020-16120: Fixed a permissions issue in ovl_path_open()
 (bsc#1177470).

CVE-2020-8694: Restricted energy meter to root access (bsc#1170415).

CVE-2020-12351: Implemented a kABI workaround for bluetooth l2cap_ops
 filter addition (bsc#1177724).

CVE-2020-12352: Fixed an information leak when processing certain AMP
 packets aka 'BleedingTooth' (bsc#1177725).

CVE-2020-25212: Fixed a TOCTOU mismatch in the NFS client code
 (bnc#1176381).

CVE-2020-25645: Fixed an issue in IPsec that caused traffic between
 two Geneve endpoints to be unencrypted (bnc#1177511).

CVE-2020-14381: Fixed a UAF in the fast user mutex (futex) wait
 operation (bsc#1176011).

CVE-2020-25643: Fixed an improper input validation in the
 ppp_cp_parse_cr function of the HDLC_PPP module (bnc#1177206).

CVE-2020-25641: Fixed a zero-length biovec request issued by the block
 subsystem could have caused the kernel to enter an infinite loop,
 causing a denial of service (bsc#1177121).

CVE-2020-26088: Fixed an improper CAP_NET_RAW check in NFC socket
 creation could have been used by local attackers to create raw sockets,
 bypassing security mechanisms (bsc#1176990).

CVE-2020-14390: Fixed an out-of-bounds memory write leading to memory
 corruption or a denial of service when changing screen size
 (bnc#1176235).

CVE-2020-0432: Fixed an out of bounds write due to an integer overflow
 (bsc#1176721).

CVE-2020-0427: Fixed an out of bounds read due to a use after free
 (bsc#1176725).

CVE-2020-0431: Fixed an out of bounds write due to a missing bounds
 check (bsc#1176722).

CVE-2020-0404: Fixed a linked list corruption due to an unusual root
 cause (bsc#1176423).

CVE-2020-25284: Fixed an incomplete permission checking for access to
 rbd devices, which ... [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 12-SP4, SUSE Linux Enterprise Live Patching 12-SP4, SUSE Linux Enterprise Server 12-SP4, SUSE Linux Enterprise Server for SAP 12-SP4, SUSE OpenStack Cloud 9, SUSE OpenStack Cloud Crowbar 9.");

  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 == "SLES12.0SP4") {

  if(!isnull(res = isrpmvuln(pkg:"kernel-default", rpm:"kernel-default~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base", rpm:"kernel-default-base~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base-debuginfo", rpm:"kernel-default-base-debuginfo~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debuginfo", rpm:"kernel-default-debuginfo~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debugsource", rpm:"kernel-default-debugsource~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel", rpm:"kernel-default-devel~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel-debuginfo", rpm:"kernel-default-devel-debuginfo~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-man", rpm:"kernel-default-man~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-macros", rpm:"kernel-macros~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source", rpm:"kernel-source~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-syms", rpm:"kernel-syms~4.12.14~95.65.1", rls:"SLES12.0SP4"))) {
    report += res;
  }

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

exit(0);