Huawei EulerOS: Security Advisory for qemu (EulerOS-SA-2021-1455)

# 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("1.3.6.1.4.1.25623.1.1.2.2021.1455");
  script_cve_id("CVE-2017-7377", "CVE-2020-13361", "CVE-2020-13362", "CVE-2020-13659", "CVE-2020-13765", "CVE-2020-14364", "CVE-2020-15863", "CVE-2020-16092", "CVE-2020-25624", "CVE-2020-25625", "CVE-2020-25723", "CVE-2020-25742", "CVE-2020-25743", "CVE-2020-27617", "CVE-2020-28916");
  script_tag(name:"creation_date", value:"2021-03-05 07:06:51 +0000 (Fri, 05 Mar 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:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2020-11-13 17:30:56 +0000 (Fri, 13 Nov 2020)");

  script_name("Huawei EulerOS: Security Advisory for qemu (EulerOS-SA-2021-1455)");
  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\.6\.6");

  script_xref(name:"Advisory-ID", value:"EulerOS-SA-2021-1455");
  script_xref(name:"URL", value:"https://developer.huaweicloud.com/intl/en-us/euleros/securitydetail.html?secId=EulerOS-SA-2021-1455");

  script_tag(name:"summary", value:"The remote host is missing an update for the Huawei EulerOS 'qemu' package(s) announced via the EulerOS-SA-2021-1455 advisory.");

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

  script_tag(name:"insight", value:"hw/ide/pci.c in QEMU before 5.1.1 can trigger a NULL pointer dereference because it lacks a pointer check before an ide_cancel_dma_sync call.(CVE-2020-25743)

pci_change_irq_level in hw/pci/pci.c in QEMU before 5.1.1 has a NULL pointer dereference because pci_get_bus() might not return a valid pointer.(CVE-2020-25742)

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)

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

A reachable assertion issue was found in the USB EHCI emulation code of QEMU. It could occur while processing USB requests due to missing handling of DMA memory map failure. A malicious privileged user within the guest may abuse this flaw to send bogus USB requests and crash the QEMU process on the host, resulting in a denial of service.(CVE-2020-25723)

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

In QEMU through 5.0.0, an assertion failure can occur in the network packet processing. This issue affects the e1000e and vmxnet3 network devices. A malicious guest user/process could use this flaw to abort the QEMU process on the host, resulting in a denial of service condition in net_tx_pkt_add_raw_fragment in hw/net/net_tx_pkt.c.(CVE-2020-16092)

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)

The (1) v9fs_create and (2) v9fs_lcreate functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid.(CVE-2017-7377)

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() operation.(CVE-2020-13361)

hw/net/xgmac.c in the XGMAC Ethernet controller in QEMU before 07-20-2020 has a buffer overflow. This occurs during packet transmission and affects the highbank and midway emulated machines. A guest user or process could use this flaw to crash the QEMU process on the host, resulting in a denial of service or potential privileged code execution. This was fixed in commit 5519724a13664b43e225ca05351c60b4468e4555.(CVE-2020-15863)

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.(CVE-2020-25624)

rom_copy() in hw/core/loader.c in QEMU 4.1.0 does not validate the relationship between two addresses, which allows attackers to trigger an invalid memory copy operation.(CVE-2020-13765)

An out-of-bounds read/write access flaw was ... [Please see the references for more information on the vulnerabilities]");

  script_tag(name:"affected", value:"'qemu' package(s) on Huawei EulerOS Virtualization 3.0.6.6.");

  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-3.0.6.6") {

  if(!isnull(res = isrpmvuln(pkg:"qemu-gpu-specs", rpm:"qemu-gpu-specs~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-guest-agent", rpm:"qemu-guest-agent~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-img", rpm:"qemu-img~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm", rpm:"qemu-kvm~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm-common", rpm:"qemu-kvm-common~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm-debuginfo", rpm:"qemu-kvm-debuginfo~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-kvm-tools", rpm:"qemu-kvm-tools~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-seabios", rpm:"qemu-seabios~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-seabios-debug", rpm:"qemu-seabios-debug~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

  if(!isnull(res = isrpmvuln(pkg:"qemu-source", rpm:"qemu-source~2.8.1~30.199", rls:"EULEROSVIRT-3.0.6.6"))) {
    report += res;
  }

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

exit(0);