SUSE: Security Advisory (SUSE-SU-2021:0737-1)

# 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("1.3.6.1.4.1.25623.1.1.4.2021.0737.1");
  script_cve_id("CVE-2020-29368", "CVE-2020-29374", "CVE-2021-26930", "CVE-2021-26931", "CVE-2021-26932");
  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:"6.9");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/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:"2021-02-23 18:35:29 +0000 (Tue, 23 Feb 2021)");

  script_name("SUSE: Security Advisory (SUSE-SU-2021:0737-1)");
  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\.0SP1)");

  script_xref(name:"Advisory-ID", value:"SUSE-SU-2021:0737-1");
  script_xref(name:"URL", value:"https://www.suse.com/support/update/announcement/2021/suse-su-20210737-1/");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'Linux Kernel' package(s) announced via the SUSE-SU-2021:0737-1 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 SP1 kernel was updated receive various security and bugfixes.

The following security bugs were fixed:

CVE-2021-26930: Fixed an improper error handling in blkback's grant
 mapping (XSA-365 bsc#1181843).

CVE-2021-26931: Fixed an issue where Linux kernel was treating grant
 mapping errors as bugs (XSA-362 bsc#1181753).

CVE-2021-26932: Fixed improper error handling issues in Linux grant
 mapping (XSA-361 bsc#1181747). by remote attackers to read or write
 files via directory traversal in an XCOPY request (bsc#178372).

CVE-2020-29368,CVE-2020-29374: Fixed an issue in copy-on-write
 implementation which could have granted unintended write access because
 of a race condition in a THP mapcount check (bsc#1179660, bsc#1179428).

The following non-security bugs were fixed:

btrfs: Cleanup try_flush_qgroup (bsc#1182047).

btrfs: Do not flush from btrfs_delayed_inode_reserve_metadata
 (bsc#1182047).

btrfs: fix data bytes_may_use underflow with fallocate due to failed
 quota reserve (bsc#1182130)

btrfs: Free correct amount of space in
 btrfs_delayed_inode_reserve_metadata (bsc#1182047).

btrfs: Remove btrfs_inode from btrfs_delayed_inode_reserve_metadata
 (bsc#1182047).

btrfs: Simplify code flow in btrfs_delayed_inode_reserve_metadata
 (bsc#1182047).

btrfs: Unlock extents in btrfs_zero_range in case of errors
 (bsc#1182047).

Drivers: hv: vmbus: Avoid use-after-free in vmbus_onoffer_rescind()
 (git-fixes).

ibmvnic: fix a race between open and reset (bsc#1176855 ltc#187293).

kernel-binary.spec: Add back initrd and image symlink ghosts to filelist
 (bsc#1182140). Fixes: 76a9256314c3 ('rpm/kernel-{source,binary}.spec: do
 not include ghost symlinks (boo#1179082).')

libnvdimm/dimm: Avoid race between probe and available_slots_show()
 (bsc#1170442).

net: bcmgenet: add support for ethtool rxnfc flows (git-fixes).

net: bcmgenet: code movement (git-fixes).

net: bcmgenet: fix mask check in bcmgenet_validate_flow() (git-fixes).

net: bcmgenet: Fix WoL with password after deep sleep (git-fixes).

net: bcmgenet: re-remove bcmgenet_hfb_add_filter (git-fixes).

net: bcmgenet: set Rx mode before starting netif (git-fixes).

net: bcmgenet: use __be16 for htons(ETH_P_IP) (git-fixes).

net: bcmgenet: Use correct I/O accessors (git-fixes).

net: lpc-enet: fix error return code in lpc_mii_init() (git-fixes).

net/mlx4_en: Handle TX error CQE (bsc#1181854).

net: moxa: Fix a potential double 'free_irq()' (git-fixes).

net: sun: fix missing release regions in cas_init_one() (git-fixes).

nvme-multipath: Early exit if no path is available (bsc#1180964).

rpm/post.sh: Avoid purge-kernel for the first installed kernel
 (bsc#1180058)

scsi: target: fix unmap_zeroes_data boolean initialisation (bsc#1163617).

usb: dwc2: Abort transaction after errors with unknown reason
 (bsc#1180262).

usb: dwc2: Do not update data length if it is 0 on inbound transfers
 ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'Linux Kernel' package(s) on SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, SUSE Linux Enterprise High Availability 15-SP1, SUSE Linux Enterprise High Performance Computing 15-SP1, SUSE Linux Enterprise Module for Live Patching 15-SP1, SUSE Linux Enterprise Server 15-SP1, SUSE Linux Enterprise Server for SAP 15-SP1, SUSE Manager Proxy 4.0, SUSE Manager Retail Branch Server 4.0, SUSE Manager Server 4.0.");

  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 == "SLES15.0SP1") {

  if(!isnull(res = isrpmvuln(pkg:"kernel-default", rpm:"kernel-default~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base", rpm:"kernel-default-base~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-base-debuginfo", rpm:"kernel-default-base-debuginfo~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debuginfo", rpm:"kernel-default-debuginfo~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-debugsource", rpm:"kernel-default-debugsource~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel", rpm:"kernel-default-devel~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-devel-debuginfo", rpm:"kernel-default-devel-debuginfo~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-default-man", rpm:"kernel-default-man~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-docs", rpm:"kernel-docs~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-macros", rpm:"kernel-macros~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-obs-build", rpm:"kernel-obs-build~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-obs-build-debugsource", rpm:"kernel-obs-build-debugsource~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-source", rpm:"kernel-source~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-syms", rpm:"kernel-syms~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-zfcpdump-debuginfo", rpm:"kernel-zfcpdump-debuginfo~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-zfcpdump-debugsource", rpm:"kernel-zfcpdump-debugsource~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"reiserfs-kmp-default", rpm:"reiserfs-kmp-default~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"reiserfs-kmp-default-debuginfo", rpm:"reiserfs-kmp-default-debuginfo~4.12.14~197.86.1", rls:"SLES15.0SP1"))) {
    report += res;
  }

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

exit(0);