Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2022-2441)

# SPDX-FileCopyrightText: 2022 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("1.3.6.1.4.1.25623.1.1.2.2022.2441");
  script_cve_id("CVE-2021-33655", "CVE-2021-33656", "CVE-2022-20368", "CVE-2022-2588", "CVE-2022-29581", "CVE-2022-32296", "CVE-2022-34918", "CVE-2022-36123", "CVE-2022-36879", "CVE-2022-36946");
  script_tag(name:"creation_date", value:"2022-10-10 07:55:28 +0000 (Mon, 10 Oct 2022)");
  script_version("2024-02-05T14:36:57+0000");
  script_tag(name:"last_modification", value:"2024-02-05 14:36:57 +0000 (Mon, 05 Feb 2024)");
  script_tag(name:"cvss_base", value:"7.2");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:L/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:"2022-08-08 13:50:17 +0000 (Mon, 08 Aug 2022)");

  script_name("Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2022-2441)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2022 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\.0SP5");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2022-2441");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2022-2441");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'kernel' package(s) announced via the EulerOS-SA-2022-2441 advisory.");

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

  script_tag(name:"insight", value:"When setting font with malicous data by ioctl cmd PIO_FONT,kernel will write memory out of bounds.(CVE-2021-33656)

When sending malicous data to kernel by ioctl cmd FBIOPUT_VSCREENINFO,kernel will write memory out of bounds.(CVE-2021-33655)

nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.(CVE-2022-36946)

The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.(CVE-2022-36123)

A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local user to crash the system and possibly lead to a local privilege escalation problem.(CVE-2022-2588)

An out-of-bounds access issue was found in the Linux kernel networking subsystem in the way raw packet sockets (AF_PACKET) used PACKET_COPY_THRESH and mmap operations. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow resulting in a system crash or privilege escalation.(CVE-2022-20368)

An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.(CVE-2022-36879)

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.(CVE-2022-34918)

The Linux kernel before 5.17.9 allows TCP servers to identify clients by observing what source ports are used.(CVE-2022-32296)

Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18, version 4.14 and later versions.(CVE-2022-29581)");

  script_tag(name:"affected", value:"'kernel' package(s) on Huawei EulerOS V2.0SP5.");

  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-2.0SP5") {

  if(!isnull(res = isrpmvuln(pkg:"kernel", rpm:"kernel~3.10.0~862.14.1.5.h708.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-devel", rpm:"kernel-devel~3.10.0~862.14.1.5.h708.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-headers", rpm:"kernel-headers~3.10.0~862.14.1.5.h708.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-tools", rpm:"kernel-tools~3.10.0~862.14.1.5.h708.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"kernel-tools-libs", rpm:"kernel-tools-libs~3.10.0~862.14.1.5.h708.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"perf", rpm:"perf~3.10.0~862.14.1.5.h708.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"python-perf", rpm:"python-perf~3.10.0~862.14.1.5.h708.eulerosv2r7", rls:"EULEROS-2.0SP5"))) {
    report += res;
  }

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

exit(0);