Huawei EulerOS: Security Advisory for qemu-kvm (EulerOS-SA-2021-2855)

# 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("1.3.6.1.4.1.25623.1.1.2.2021.2855");
  script_cve_id("CVE-2020-13253", "CVE-2020-13361", "CVE-2020-13362", "CVE-2020-13659", "CVE-2020-13754", "CVE-2020-13791", "CVE-2020-16092", "CVE-2020-17380", "CVE-2020-25085", "CVE-2020-25624", "CVE-2020-25625", "CVE-2020-27617", "CVE-2020-28916", "CVE-2021-3409", "CVE-2021-3416");
  script_tag(name:"creation_date", value:"2021-12-31 03:22:36 +0000 (Fri, 31 Dec 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:"4.7");
  script_tag(name:"cvss_base_vector", value:"AV:L/AC:M/Au:N/C:N/I:N/A:C");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-09-30 23:32:25 +0000 (Wed, 30 Sep 2020)");

  script_name("Huawei EulerOS: Security Advisory for qemu-kvm (EulerOS-SA-2021-2855)");
  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=EULEROSVIRT\-3\.0\.2\.6");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2021-2855");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2021-2855");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'qemu-kvm' package(s) announced via the EulerOS-SA-2021-2855 advisory.");

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

  script_tag(name:"insight", value:"hw/usb/hcd-ohci.c in QEMU 5.0.0 has a stack-based buffer over-read via values obtained from the host controller driver.Not found.(CVE-2020-16092)

address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.(CVE-2020-13659)

In QEMU 5.0.0 and earlier, megasas_lookup_frame in hw/scsi/megasas.c has an out-of-bounds read via a crafted reply_queue_head field from a guest OS user.(CVE-2020-13362)

In QEMU 5.0.0 and earlier, es1370_transfer_audio in hw/audio/es1370.c does not properly validate the frame count, which allows guest OS users to trigger an out-of-bounds access during an es1370_write() An elevation of privilege vulnerability exists in the way that the Windows Kernel handles objects in memory, aka 'Windows Kernel Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-1411.(CVE-2020-13361)

hw/pci/pci.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access by providing an address near the end of the PCI configuration space..(CVE-2020-13791)

hw/pci/msix.c in QEMU 4.2.0 allows guest OS users to trigger an out-of-bounds access via a crafted address in an msi-x mmio operation.(CVE-2020-13754)

sd_wp_addr in hw/sd/sd.c in QEMU 4.2.0 uses an unvalidated address, which leads to an out-of-bounds read during sdhci_write() operations. A guest OS user can crash the QEMU process.(CVE-2020-13253)

A potential stack overflow via infinite loop issue was found in various NIC emulators of QEMU in versions up to and including 5.2.0. The issue occurs in loopback mode of a NIC wherein reentrant DMA checks get bypassed. A guest user/process may use this flaw to consume CPU cycles or crash the QEMU process on the host resulting in DoS scenario.(CVE-2021-3416)

hw/net/e1000e_core.c in QEMU 5.0.0 has an infinite loop via an RX descriptor with a NULL buffer address.(CVE-2020-28916)

eth_get_gso_type in net/eth.c in QEMU 4.2.1 allows guest OS users to trigger an assertion failure. A guest can crash the QEMU process via packet data that lacks a valid Layer 3 protocol.(CVE-2020-27617)

hw/usb/hcd-ohci.c in QEMU 5.0.0 has an infinite loop when a TD list has a loop.(CVE-2020-25625)

The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this.(CVE-2021-3409)

QEMU 5.0.0 has a heap-based Buffer Overflow in flatview_read_continue in exec.c because hw/sd/sdhci.c mishandles a write operation in the SDHC_BLKSIZE case.(CVE-2020-25085)

A heap-based buffer overflow was found in QEMU through 5.0.0 in the SDHCI device emulation support. It could occur while doing a multi block SDMA transfer ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'qemu-kvm' package(s) on Huawei EulerOS Virtualization 3.0.2.6.");

  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 == "EULEROSVIRT-3.0.2.6") {

  if(!isnull(res = isrpmvuln(pkg:"qemu-gpu-specs", rpm:"qemu-gpu-specs~2.8.1~30.093", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-guest-agent", rpm:"qemu-guest-agent~2.8.1~30.093", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-img", rpm:"qemu-img~2.8.1~30.093", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm", rpm:"qemu-kvm~2.8.1~30.093", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm-common", rpm:"qemu-kvm-common~2.8.1~30.093", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm-tools", rpm:"qemu-kvm-tools~2.8.1~30.093", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-seabios", rpm:"qemu-seabios~2.8.1~30.093", rls:"EULEROSVIRT-3.0.2.6"))) {
    report += res;
  }

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

exit(0);