Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2021-1808)

# 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("1.3.6.1.4.1.25623.1.1.2.2021.1808");
  script_cve_id("CVE-2014-7841", "CVE-2016-3857", "CVE-2016-8660", "CVE-2017-13305", "CVE-2017-17741", "CVE-2017-18216", "CVE-2017-7482", "CVE-2018-10322", "CVE-2018-10876", "CVE-2018-10877", "CVE-2018-10880", "CVE-2018-10902", "CVE-2018-13093", "CVE-2018-14734", "CVE-2018-16276", "CVE-2018-7492", "CVE-2018-9383", "CVE-2019-11486", "CVE-2019-11815", "CVE-2019-12614", "CVE-2019-19319", "CVE-2019-6974", "CVE-2019-7221", "CVE-2020-0404", "CVE-2020-0427", "CVE-2020-0465", "CVE-2020-0466", "CVE-2020-25656", "CVE-2020-25669", "CVE-2020-27777", "CVE-2020-27815", "CVE-2020-35519", "CVE-2020-36158", "CVE-2021-20261", "CVE-2021-27363", "CVE-2021-27364", "CVE-2021-27365", "CVE-2021-28972", "CVE-2021-3178");
  script_tag(name:"creation_date", value:"2021-05-03 06:21:20 +0000 (Mon, 03 May 2021)");
  script_version("2024-02-05T14:36:56+0000");
  script_tag(name:"last_modification", value:"2024-02-05 14:36:56 +0000 (Mon, 05 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:N/AC:H/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:"2022-04-05 20:40:45 +0000 (Tue, 05 Apr 2022)");

  script_name("Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2021-1808)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2021 Greenbone AG");
  script_family("Huawei EulerOS Local Security Checks");
  script_dependencies("gb_huawei_euleros_consolidation.nasl");
  script_mandatory_keys("ssh/login/euleros", "ssh/login/rpms", re:"ssh/login/release=EULEROS\-2\.0SP3");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2021-1808");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2021-1808");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'kernel' package(s) announced via the EulerOS-SA-2021-1808 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"A flaw was found in Linux kernel in the ext4 filesystem code. A use-after-free is possible in ext4_ext_remove_space() function when mounting and operating a crafted ext4 image.(CVE-2018-10876)

A flaw was found in the Linux kernel. A use-after-free was found in the way the console subsystem was using ioctls KDGKBSENT and KDSKBSENT. A local user could use this flaw to get read memory access out of bounds. The highest threat from this vulnerability is to data confidentiality.(CVE-2020-25656)

A flaw was found in the way RTAS handled memory accesses in userspace to kernel communication. On a locked down (usually due to Secure Boot) guest system running on top of PowerVM or KVM hypervisors (pseries platform) a root like local user could use this flaw to further increase their privileges to that of a running kernel.(CVE-2020-27777)

A information disclosure vulnerability in the Upstream kernel encrypted-keys. Product: Android. Versions: Android kernel. Android ID: A-70526974.(CVE-2017-13305)

A race condition was found in the Linux kernels implementation of the floppy disk drive controller driver software. The impact of this issue is lessened by the fact that the default permissions on the floppy device (/dev/fd0) are restricted to root. If the permissions on the device have changed the impact changes greatly. In the default configuration root (or equivalent) permissions are required to attack this flaw.(CVE-2021-20261)

An issue was discovered in dlpar_parse_cc_property in arch/powerpc/platforms/pseries/dlpar.c in the Linux kernel through 5.1.6. There is an unchecked kstrdup of prop->name, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash).(CVE-2019-12614)

An issue was discovered in fs/xfs/xfs_icache.c in the Linux kernel through 4.17.3. There is a NULL pointer dereference and panic in lookup_slow() on a NULL inode->i_ops pointer when doing pathwalks on a corrupted xfs image. This occurs because of a lack of proper validation that cached inodes are free during allocation.(CVE-2018-13093)

An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel before 5.0.8. There is a race condition leading to a use-after-free, related to net namespace cleanup.(CVE-2019-11815)

An issue was discovered in the Linux kernel through 5.11.3. A kernel pointer leak can be used to determine the address of the iscsi_transport structure. When an iSCSI transport is registered with the iSCSI subsystem, the transport's handle is available to unprivileged users via the sysfs file system, at /sys/class/iscsi_transport/$TRANSPORT_NAME/handle. When read, the show_transport_handle function (in drivers/scsi/scsi_transport_iscsi.c) is called, which leaks the handle. This handle is actually the pointer to an iscsi_transport struct in the kernel module's global variables.(CVE-2021-27363)

An issue was discovered in the Linux kernel ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'kernel' package(s) on Huawei EulerOS V2.0SP3.");

  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 == "EULEROS-2.0SP3") {

  if(!isnull(res = isrpmvuln(pkg:"kernel", rpm:"kernel~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-debuginfo", rpm:"kernel-debuginfo~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-debuginfo-common-x86_64", rpm:"kernel-debuginfo-common-x86_64~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-headers", rpm:"kernel-headers~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-tools", rpm:"kernel-tools~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-tools-libs", rpm:"kernel-tools-libs~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"perf", rpm:"perf~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python-perf", rpm:"python-perf~3.10.0~514.44.5.10.h323", rls:"EULEROS-2.0SP3"))) {
    report += res;
  }

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

exit(0);