SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:0585-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2016:0585-1.
# The text itself is copyright (C) SUSE.
#

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  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2013-7446", "CVE-2015-0272", "CVE-2015-5707", "CVE-2015-7550", "CVE-2015-7799", "CVE-2015-8215", "CVE-2015-8539", "CVE-2015-8543", "CVE-2015-8550", "CVE-2015-8551", "CVE-2015-8569", "CVE-2015-8575", "CVE-2015-8660", "CVE-2015-8767", "CVE-2015-8785", "CVE-2016-0723", "CVE-2016-2069");

  script_name(english:"SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:0585-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

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    value:"The remote SUSE host is missing one or more security updates."
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  script_set_attribute(
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"The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.53 to
receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2013-7446: Use-after-free vulnerability in
    net/unix/af_unix.c in the Linux kernel allowed local
    users to bypass intended AF_UNIX socket permissions or
    cause a denial of service (panic) via crafted epoll_ctl
    calls (bnc#955654).

  - CVE-2015-5707: Integer overflow in the sg_start_req
    function in drivers/scsi/sg.c in the Linux kernel
    allowed local users to cause a denial of service or
    possibly have unspecified other impact via a large
    iov_count value in a write request (bnc#940338).

  - CVE-2015-7550: The keyctl_read_key function in
    security/keys/keyctl.c in the Linux kernel did not
    properly use a semaphore, which allowed local users to
    cause a denial of service (NULL pointer dereference and
    system crash) or possibly have unspecified other impact
    via a crafted application that leverages a race
    condition between keyctl_revoke and keyctl_read calls
    (bnc#958951).

  - CVE-2015-7799: The slhc_init function in
    drivers/net/slip/slhc.c in the Linux kernel did not
    ensure that certain slot numbers are valid, which
    allowed local users to cause a denial of service (NULL
    pointer dereference and system crash) via a crafted
    PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in
    the Linux kernel did not validate attempted changes to
    the MTU value, which allowed context-dependent attackers
    to cause a denial of service (packet loss) via a value
    that was (1) smaller than the minimum compliant value or
    (2) larger than the MTU of an interface, as demonstrated
    by a Router Advertisement (RA) message that is not
    validated by a daemon, a different vulnerability than
    CVE-2015-0272 (bnc#955354).

  - CVE-2015-8539: The KEYS subsystem in the Linux kernel
    allowed local users to gain privileges or cause a denial
    of service (BUG) via crafted keyctl commands that
    negatively instantiate a key, related to
    security/keys/encrypted-keys/encrypted.c,
    security/keys/trusted.c, and
    security/keys/user_defined.c (bnc#958463).

  - CVE-2015-8543: The networking implementation in the
    Linux kernel did not validate protocol identifiers for
    certain protocol families, which allowed local users to
    cause a denial of service (NULL function pointer
    dereference and system crash) or possibly gain
    privileges by leveraging CLONE_NEWUSER support to
    execute a crafted SOCK_RAW application (bnc#958886).

  - CVE-2015-8550: Optimizations introduced by the compiler
    could have lead to double fetch vulnerabilities,
    potentially possibly leading to arbitrary code execution
    in backend (bsc#957988).

  - CVE-2015-8551: Xen PCI backend driver did not perform
    proper sanity checks on the device's state, allowing for
    DoS (bsc#957990).

  - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect
    functions in drivers/net/ppp/pptp.c in the Linux kernel
    did not verify an address length, which allowed local
    users to obtain sensitive information from kernel memory
    and bypass the KASLR protection mechanism via a crafted
    application (bnc#959190).

  - CVE-2015-8575: The sco_sock_bind function in
    net/bluetooth/sco.c in the Linux kernel did not verify
    an address length, which allowed local users to obtain
    sensitive information from kernel memory and bypass the
    KASLR protection mechanism via a crafted application
    (bnc#959399).

  - CVE-2015-8660: The ovl_setattr function in
    fs/overlayfs/inode.c in the Linux kernel attempted to
    merge distinct setattr operations, which allowed local
    users to bypass intended access restrictions and modify
    the attributes of arbitrary overlay files via a crafted
    application (bnc#960281).

  - CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux
    kernel did not properly manage the relationship between
    a lock and a socket, which allowed local users to cause
    a denial of service (deadlock) via a crafted sctp_accept
    call (bnc#961509).

  - CVE-2015-8785: The fuse_fill_write_pages function in
    fs/fuse/file.c in the Linux kernel allowed local users
    to cause a denial of service (infinite loop) via a
    writev system call that triggers a zero length for the
    first segment of an iov (bnc#963765).

  - CVE-2016-0723: Race condition in the tty_ioctl function
    in drivers/tty/tty_io.c in the Linux kernel allowed
    local users to obtain sensitive information from kernel
    memory or cause a denial of service (use-after-free and
    system crash) by making a TIOCGETD ioctl call during
    processing of a TIOCSETD ioctl call (bnc#961500).

  - CVE-2016-2069: A race in invalidating paging structures
    that were not in use locally could have lead to
    disclosoure of information or arbitrary code exectution
    (bnc#963767).

The update package also includes non-security fixes. See advisory for
details.

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
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"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12-SP1 :

zypper in -t patch SUSE-SLE-WE-12-SP1-2016-329=1

SUSE Linux Enterprise Software Development Kit 12-SP1 :

zypper in -t patch SUSE-SLE-SDK-12-SP1-2016-329=1

SUSE Linux Enterprise Server 12-SP1 :

zypper in -t patch SUSE-SLE-SERVER-12-SP1-2016-329=1

SUSE Linux Enterprise Module for Public Cloud 12 :

zypper in -t patch SUSE-SLE-Module-Public-Cloud-12-2016-329=1

SUSE Linux Enterprise Live Patching 12 :

zypper in -t patch SUSE-SLE-Live-Patching-12-2016-329=1

SUSE Linux Enterprise Desktop 12-SP1 :

zypper in -t patch SUSE-SLE-DESKTOP-12-SP1-2016-329=1

To bring your system up-to-date, use 'zypper patch'."
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include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP1", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(1)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP1", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"kernel-xen-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"kernel-xen-base-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"kernel-xen-base-debuginfo-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"kernel-xen-debuginfo-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"kernel-xen-debugsource-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"kernel-xen-devel-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"lttng-modules-2.7.0-3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"lttng-modules-debugsource-2.7.0-3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"lttng-modules-kmp-default-2.7.0_k3.12.53_60.30-3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"x86_64", reference:"lttng-modules-kmp-default-debuginfo-2.7.0_k3.12.53_60.30-3.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", cpu:"s390x", reference:"kernel-default-man-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"kernel-default-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"kernel-default-base-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"kernel-default-base-debuginfo-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"kernel-default-debuginfo-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"kernel-default-debugsource-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"kernel-default-devel-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLES12", sp:"1", reference:"kernel-syms-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-default-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-default-debuginfo-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-default-debugsource-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-default-devel-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-default-extra-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-default-extra-debuginfo-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-syms-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-xen-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-xen-debuginfo-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-xen-debugsource-3.12.53-60.30.1")) flag++;
if (rpm_check(release:"SLED12", sp:"1", cpu:"x86_64", reference:"kernel-xen-devel-3.12.53-60.30.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel");
}