SUSE: Security Advisory (SUSE-SU-2017:0575-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2017.0575.1");
  script_cve_id("CVE-2015-8709", "CVE-2016-7117", "CVE-2016-9806", "CVE-2017-2583", "CVE-2017-2584", "CVE-2017-5551", "CVE-2017-5576", "CVE-2017-5577", "CVE-2017-5897", "CVE-2017-5970", "CVE-2017-5986");
  script_tag(name:"creation_date", value:"2021-04-19 00:00:00 +0000 (Mon, 19 Apr 2021)");
  script_version("2024-02-02T14:37:49+0000");
  script_tag(name:"last_modification", value:"2024-02-02 14:37:49 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"10.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/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:"2017-03-28 15:47:44 +0000 (Tue, 28 Mar 2017)");

  script_name("SUSE: Security Advisory (SUSE-SU-2017:0575-1)");
  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\.0SP2)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2017:0575-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2017/suse-su-20170575-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2017:0575-1 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 SP2 kernel was updated to 4.4.49 to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2016-7117: Use-after-free vulnerability in the __sys_recvmmsg
 function in net/socket.c in the Linux kernel allowed remote attackers to
 execute arbitrary code via vectors involving a recvmmsg system call that
 was mishandled during error processing (bnc#1003077).
- CVE-2017-5576: Integer overflow in the vc4_get_bcl function in
 drivers/gpu/drm/vc4/vc4_gem.c in the VideoCore DRM driver in the Linux
 kernel allowed local users to cause a denial of service or possibly have
 unspecified
 other impact via a crafted size value in a VC4_SUBMIT_CL ioctl call
 (bnc#1021294).
- CVE-2017-5577: The vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c
 in the VideoCore DRM driver in the Linux kernel did not set an errno
 value upon certain overflow detections, which allowed local users to
 cause a denial of service (incorrect pointer dereference and OOPS) via
 inconsistent size values in a VC4_SUBMIT_CL ioctl call (bnc#1021294).
- CVE-2017-5551: The simple_set_acl function in fs/posix_acl.c in the
 Linux kernel preserved the setgid bit during a setxattr call involving a
 tmpfs filesystem, which allowed local users to gain group privileges by
 leveraging the existence of a setgid program with restrictions on
 execute permissions. (bnc#1021258).
- CVE-2017-2583: The load_segment_descriptor implementation in
 arch/x86/kvm/emulate.c in the Linux kernel improperly emulated a 'MOV
 SS, NULL selector' instruction, which allowed guest OS users to cause a
 denial of service (guest OS crash) or gain guest OS privileges via a
 crafted application (bnc#1020602).
- CVE-2017-2584: arch/x86/kvm/emulate.c in the Linux kernel allowed local
 users to obtain sensitive information from kernel memory or cause a
 denial of service (use-after-free) via a crafted application that
 leverages instruction emulation for fxrstor, fxsave, sgdt, and sidt
 (bnc#1019851).
- CVE-2015-8709: kernel/ptrace.c in the Linux kernel mishandled uid and
 gid mappings, which allowed local users to gain privileges by
 establishing a user namespace, waiting for a root process to enter that
 namespace with an unsafe uid or gid, and then using the ptrace system
 call. NOTE: the vendor states 'there is no kernel bug here'
 (bnc#1010933).
- CVE-2016-9806: Race condition in the netlink_dump function in
 net/netlink/af_netlink.c in the Linux kernel allowed local users to
 cause a denial of service (double free) or possibly have unspecified
 other impact via a crafted application that made sendmsg system calls,
 leading to a free
 operation associated with a new dump that started earlier than
 anticipated (bnc#1013540).
- CVE-2017-5897: fixed a bug in the Linux kernel IPv6 implementation which
 allowed remote attackers to trigger an out-of-bounds access, leading to
 a denial-of-service ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'Linux Kernel' package(s) on SUSE Linux Enterprise Desktop 12-SP2, SUSE Linux Enterprise High Availability 12-SP2, SUSE Linux Enterprise Live Patching 12, SUSE Linux Enterprise Server 12-SP2, SUSE Linux Enterprise Server for Raspberry Pi 12-SP2, SUSE Linux Enterprise Software Development Kit 12-SP2, SUSE Linux Enterprise Workstation Extension 12-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 == "SLES12.0SP2") {

  if(!isnull(res = isrpmvuln(pkg:"kernel-default", rpm:"kernel-default~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base", rpm:"kernel-default-base~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base-debuginfo", rpm:"kernel-default-base-debuginfo~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debuginfo", rpm:"kernel-default-debuginfo~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debugsource", rpm:"kernel-default-debugsource~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel", rpm:"kernel-default-devel~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-macros", rpm:"kernel-macros~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source", rpm:"kernel-source~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-syms", rpm:"kernel-syms~4.4.49~92.11.1", rls:"SLES12.0SP2"))) {
    report += res;
  }

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

exit(0);