This update for qemu fixes the following issues :

Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)

Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)

Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)

Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)

Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)

Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)

Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)

Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)

Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)

Fix heap overflow in MSIx emulation (CVE-2020-27821, bsc#1179686)

Fix NULL pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)

Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)

Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)

Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)

Fix OOB access in SLIRP ARP/NCSI packet processing (CVE-2020-29129, bsc#1179466, CVE-2020-29130, bsc#1179467)

Fix NULL pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386)

Fix issue where s390 guest fails to find zipl boot menu index (bsc#1183979)

Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)

Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)

Fix package scripts to not use hard-coded paths for temporary working directories and log files (bsc#1182425)

Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)

Apply fixes to qemu scsi passthrough with respect to timeout and error conditions, including using more correct status codes. (bsc#1178049)

Fix OOB access in ARM interrupt handling (CVE-2021-20221 bsc#1181933)

Tweaks to spec file for better formatting, and remove not needed BuildRequires for e2fsprogs-devel and libpcap-devel

Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)

Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)

Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)

Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)

Fix buffer overflow in the XGMAC device (CVE-2020-15863 bsc#1174386)

Use '%service_del_postun_without_restart' instead of '%service_del_postun' to avoid 'Failed to try-restart qemu-ga@.service' error while updating the qemu-guest-agent.
(bsc#1178565)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for qemu fixes the following issues :

Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)

Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)

Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)

Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)

Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)

Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)

Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)

Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)

Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)

Fix NULL pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)

Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)

Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)

Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)

Fix OOB access in SLIRP ARP/NCSI packet processing (CVE-2020-29129, bsc#1179466, CVE-2020-29130, bsc#1179467)

Fix NULL pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386

Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)

Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)

Fix buffer overflow in the XGMAC device (CVE-2020-15863 bsc#1174386)

Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)

Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)

Fix package scripts to not use hard-coded paths for temporary working directories and log files (bsc#1182425)

Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)

Drop the 'ampersand 0x25 shift altgr' line in pt-br keymap file (bsc#1129962)

Fix migration failure with error message: 'error while loading state section id 3(ram) (bsc#1154790)

Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)

Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)

Fix OOB access in ARM interrupt handling (CVE-2021-20221 bsc#1181933)

Tweaks to spec file for better formatting, and remove not needed BuildRequires for e2fsprogs-devel and libpcap-devel

Use '%service_del_postun_without_restart' instead of '%service_del_postun' to avoid 'Failed to try-restart qemu-ga@.service' error while updating the qemu-guest-agent.
(bsc#1178565)

Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Multiple security issues were discovered in QEMU, a fast processor emulator :

  - CVE-2020-12829     An integer overflow in the sm501 display device may     result in denial of service.

  - CVE-2020-14364     An out-of-bounds write in the USB emulation code may     result in guest-to-host code execution.

  - CVE-2020-15863     A buffer overflow in the XGMAC network device may result     in denial of service or the execution of arbitrary code.

  - CVE-2020-16092     A triggerable assert in the e1000e and vmxnet3 devices     may result in denial of service.

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:1762 advisory.

    Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware     platforms. The virt:rhel module contains packages which provide user-space components used to run virtual     machines using KVM. The packages also provide APIs for managing and interacting with the virtualized     systems.

    Security Fix(es):

    * libvirt: double free in qemuAgentGetInterfaces() in qemu_agent.c (CVE-2020-25637)

    * QEMU: heap buffer overflow in msix_table_mmio_write() in hw/pci/msix.c (CVE-2020-27821)

    * QEMU: ide: atapi: OOB access while processing read commands (CVE-2020-29443)

    * QEMU: heap buffer overflow in iscsi_aio_ioctl_cb() in block/iscsi.c may lead to information disclosure     (CVE-2020-11947)

    * QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c     (CVE-2020-16092)

    * QEMU: infinite loop in e1000e_write_packet_to_guest() in hw/net/e1000e_core.c (CVE-2020-25707)

    * QEMU: assertion failure through usb_packet_unmap() in hw/usb/hcd-ehci.c (CVE-2020-25723)

    * QEMU: e1000e: infinite loop scenario in case of null packet descriptor (CVE-2020-28916)

    * QEMU: slirp: out-of-bounds access while processing ARP/NCSI packets (CVE-2020-29129, CVE-2020-29130)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the qemu-kvm packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :

  - 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)

  - 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)

  - 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)

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

  - 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)

  - 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)

  - 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)

  - 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 via the sdhci_sdma_transfer_multi_blocks() routine in     hw/sd/sdhci.c. A guest user or process could use this flaw to crash the QEMU process on the host,     resulting in a denial of service condition, or potentially execute arbitrary code with privileges of the     QEMU process on the host. (CVE-2020-17380)

  - 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)

  - 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)

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

  - 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/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)

  - 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)

  - 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0346 advisory.

  - 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)

  - A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows     crafted packets to cause a denial of service. (CVE-2020-1983)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

This update for qemu fixes the following issues :

Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)

Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)

Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)

Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)

Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)

Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)

Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)

Fix infinite loop (DoS) in e1000e device emulation (CVE-2020-28916, bsc#1179468)

Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)

Fix NULL pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)

Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)

Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)

Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)

Fix OOB access in SLIRP ARP packet processing (CVE-2020-29130, bsc#1179467)

Fix NULL pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386

Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)

Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)

Fix buffer overflow in the XGMAC device (CVE-2020-15863, bsc#1174386)

Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)

Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)

Fix package scripts to not use hard-coded paths for temporary working directories and log files (bsc#1182425)

Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)

Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)

Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the qemu-kvm packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

  - QEMU: reachable assertion failure in     net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c     (CVE-2020-16092)

  - An out-of-bounds read/write access flaw was found in     the USB emulator of the QEMU. This issue occurs while     processing USB packets from a guest when USBDevice     'setup_len' exceeds its 'data_buf[4096]' in the     do_token_in, do_token_out routines. This flaw allows a     guest user to crash the QEMU process, resulting in a     denial of service, or the potential execution of     arbitrary code with the privileges of the QEMU process     on the host.(CVE-2020-14364)

  - A use after free vulnerability in ip_reass() in     ip_input.c of libslirp 4.2.0 and prior releases allows     crafted packets to cause a denial of     service.(CVE-2020-1983)

  - 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-2020-1586     3)

  - 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)

  - QEMU 4.1.0 has a memory leak in zrle_compress_data in     ui/vnc-enc-zrle.c during a VNC disconnect operation     because libz is misused, resulting in a situation where     memory allocated in deflateInit2 is not freed in     deflateEnd.(CVE-2019-20382)

  - 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)

  - 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)

  - 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)

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

  - 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)

  - 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the version of the qemu-kvm packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability :

  - 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)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for qemu fixes the following issues :

CVE-2020-13361: Fixed an OOB access possibility in ES1370 audio device emulation (bsc#1172384).

CVE-2020-14364: Fixed an OOB access while processing USB packets (bsc#1175441).

CVE-2020-16092: Fixed a denial of service in packet processing of various emulated NICs (bsc#1174641).

CVE-2020-15863: Fixed a buffer overflow in the XGMAC device (bsc#1174386).

Fix OOB access in ROM loading

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:0347 advisory.

    Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of     architectures. The qemu-kvm packages provide the user-space component for running virtual machines that     use KVM.

    Security Fix(es):

    * QEMU: loader: OOB access while loading registered ROM may lead to code execution (CVE-2020-13765)

    * QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c     (CVE-2020-16092)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * qemu-kvm FTBFS on rhel7.9 (BZ#1884997)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9034 advisory.

    - Document CVE-2020-25723 as fixed (Mark Kanda)  [Orabug: 32222397]  {CVE-2020-25084} {CVE-2020-25723}
    - hw/net/e1000e: advance desc_offset in case of null descriptor (Prasad J Pandit)  [Orabug: 32217517]     {CVE-2020-28916}
    - libslirp: Update version to include CVE fixes (Mark Kanda)  [Orabug: 32208456] [Orabug: 32208462]     {CVE-2020-29129} {CVE-2020-29130}
    - Document CVE-2020-25624 as fixed (Mark Kanda)  [Orabug: 32212527]  {CVE-2020-25624} {CVE-2020-25625}
    - ati: check x y display parameter values (Prasad J Pandit)  [Orabug: 32108251]  {CVE-2020-27616}
    - hw: usb: hcd-ohci: check for processed TD before retire (Prasad J Pandit)  [Orabug: 31901690]     {CVE-2020-25625}
    - hw: usb: hcd-ohci: check len and frame_number variables (Prasad J Pandit)  [Orabug: 31901690]     {CVE-2020-25625}
    - hw: ehci: check return value of 'usb_packet_map' (Li Qiang)  [Orabug: 31901649]  {CVE-2020-25084}
    - hw: xhci: check return value of 'usb_packet_map' (Li Qiang)  [Orabug: 31901649]  {CVE-2020-25084}
    - usb: fix setup_len init (CVE-2020-14364) (Gerd Hoffmann)  [Orabug: 31848849]  {CVE-2020-14364}
    - Document CVE-2020-12829 and CVE-2020-14415 as fixed (Mark Kanda)  [Orabug: 31855502] [Orabug: 31855427]     {CVE-2020-12829} {CVE-2020-14415}
    - hw/net/xgmac: Fix buffer overflow in xgmac_enet_send() (Mauro Matteo Cascella)  [Orabug: 31667649]     {CVE-2020-15863}
    - hw/net/net_tx_pkt: fix assertion failure in net_tx_pkt_add_raw_fragment() (Mauro Matteo Cascella)     [Orabug: 31737809]  {CVE-2020-16092}
    - hw/sd/sdcard: Do not switch to ReceivingData if address is invalid (Philippe Mathieu-Daude)  [Orabug:
    31414336]  {CVE-2020-13253}
    - hw/sd/sdcard: Do not allow invalid SD card sizes (Philippe Mathieu-Daude)  [Orabug: 31414336]     {CVE-2020-13253}
    - libslirp: Update to v4.3.1 to fix CVE-2020-10756 (Karl Heubaum)  [Orabug: 31604999]  {CVE-2020-10756}
    - Document CVEs as fixed 2/2 (Karl Heubaum)  [Orabug: 30618035]  {CVE-2017-18043} {CVE-2018-10839}     {CVE-2018-11806} {CVE-2018-12617} {CVE-2018-15746} {CVE-2018-16847} {CVE-2018-16867} {CVE-2018-17958}     {CVE-2018-17962} {CVE-2018-17963} {CVE-2018-18849} {CVE-2018-19364} {CVE-2018-19489} {CVE-2018-3639}     {CVE-2018-5683} {CVE-2018-7550} {CVE-2018-7858} {CVE-2019-12068} {CVE-2019-15034} {CVE-2019-15890}     {CVE-2019-20382} {CVE-2020-10702} {CVE-2020-10761} {CVE-2020-11102} {CVE-2020-11869} {CVE-2020-13361}     {CVE-2020-13765} {CVE-2020-13800} {CVE-2020-1711} {CVE-2020-1983} {CVE-2020-8608}
    - Document CVEs as fixed 1/2 (Karl Heubaum)  [Orabug: 30618035]  {CVE-2017-10806} {CVE-2017-11334}     {CVE-2017-12809} {CVE-2017-13672} {CVE-2017-13673} {CVE-2017-13711} {CVE-2017-14167} {CVE-2017-15038}     {CVE-2017-15119} {CVE-2017-15124} {CVE-2017-15268} {CVE-2017-15289} {CVE-2017-16845} {CVE-2017-17381}     {CVE-2017-18030} {CVE-2017-2630} {CVE-2017-2633} {CVE-2017-5715} {CVE-2017-5753} {CVE-2017-5754}     {CVE-2017-5931} {CVE-2017-6058} {CVE-2017-7471} {CVE-2017-7493} {CVE-2017-8112} {CVE-2017-8309}     {CVE-2017-8379} {CVE-2017-8380} {CVE-2017-9503} {CVE-2017-9524} {CVE-2018-12126} {CVE-2018-12127}     {CVE-2018-12130} {CVE-2018-16872} {CVE-2018-20123} {CVE-2018-20124} {CVE-2018-20125} {CVE-2018-20126}     {CVE-2018-20191} {CVE-2018-20216} {CVE-2018-20815} {CVE-2019-11091} {CVE-2019-12155} {CVE-2019-14378}     {CVE-2019-3812} {CVE-2019-5008} {CVE-2019-6501} {CVE-2019-6778} {CVE-2019-8934} {CVE-2019-9824}
    - exec: set map length to zero when returning NULL (Prasad J Pandit)  [Orabug: 31439733]  {CVE-2020-13659}
    - megasas: use unsigned type for reply_queue_head and check index (Prasad J Pandit)  [Orabug: 31414338]     {CVE-2020-13362}
    - memory: Revert 'memory: accept mismatching sizes in memory_region_access_valid' (Michael S. Tsirkin)     [Orabug: 31439736] [Orabug: 31452202]  {CVE-2020-13754} {CVE-2020-13791}
    - Document CVE-2020-13765 as fixed (Karl Heubaum)  [Orabug: 31463250]  {CVE-2020-13765}
    - ati-vga: check mm_index before recursive call (CVE-2020-13800) (Prasad J Pandit)  [Orabug: 31452206]     {CVE-2020-13800}
    - es1370: check total frame count against current frame (Prasad J Pandit)  [Orabug: 31463235]     {CVE-2020-13361}
    - ati-vga: Fix checks in ati_2d_blt() to avoid crash (BALATON Zoltan)  [Orabug: 31238432]     {CVE-2020-11869}
    - libslirp: Update to stable-4.2 to fix CVE-2020-1983 (Karl Heubaum)  [Orabug: 31241227]  {CVE-2020-1983}
    - Document CVEs as fixed (Karl Heubaum)   {CVE-2019-12068} {CVE-2019-15034}
    - libslirp: Update to version 4.2.0 to fix CVEs (Karl Heubaum)  [Orabug: 30274592] [Orabug: 30869830]     {CVE-2019-15890} {CVE-2020-8608}
    - vnc: fix memory leak when vnc disconnect (Li Qiang)  [Orabug: 30996427]  {CVE-2019-20382}
    - iscsi: Cap block count from GET LBA STATUS (CVE-2020-1711) (Felipe Franciosi)  [Orabug: 31124035]     {CVE-2020-1711}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of qemu-kvm installed on the remote host is prior to 1.5.3-156.26. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2021-1488 advisory.

    An out-of-bound write access flaw was found in the way QEMU loads ROM contents at boot time. This flaw     occurs in the rom_copy() routine while loading the contents of a 32-bit -kernel image into memory. Running     an untrusted -kernel image may load contents at arbitrary memory locations, potentially leading to code     execution with the privileges of the QEMU process. (CVE-2020-13765)

    An assertion failure flaw was found in QEMU in the network packet processing component. This issue affects     the e1000e and vmxnet3 network devices. This flaw allows a malicious guest user or process to abort     the QEMU process on the host, resulting in a denial of service. (CVE-2020-16092)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2022:0119 advisory.

    Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities:

    CVE-2018-12130:
    Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing     speculative execution may allow an authenticated user to potentially enable information disclosure via a     side channel with local access. A list of impacted products can be found here:
    https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-     update-guidance_05132019.pdf

    CVE-2018-13405:
    The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create     files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and     is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a     plain file whose group ownership is that group. The intended behavior was that the non-member can trigger     creation of a directory (but not a plain file) whose group ownership is that group. The non-member can     escalate privileges by making the plain file executable and SGID.

    CVE-2019-10132:
    A vulnerability was found in libvirt >= 4.1.0 in the virtlockd-admin.socket and virtlogd-admin.socket     systemd units. A missing SocketMode configuration parameter allows any user on the host to connect using     virtlockd-admin-sock or virtlogd-admin-sock and perform administrative tasks against the virtlockd and     virtlogd daemons.

    CVE-2019-10161:
    It was discovered that libvirtd before versions 4.10.1 and 5.4.1 would permit read-only clients to use the     virDomainSaveImageGetXMLDesc() API, specifying an arbitrary path which would be accessed with the     permissions of the libvirtd process. An attacker with access to the libvirtd socket could use this to     probe the existence of arbitrary files, cause denial of service or cause libvirtd to execute arbitrary     programs.

    CVE-2019-10166:
    It was discovered that libvirtd, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1, would permit     readonly clients to use the virDomainManagedSaveDefineXML() API, which would permit them to modify managed     save state files. If a managed save had already been created by a privileged user, a local attacker could     modify this file such that libvirtd would execute an arbitrary program when the domain was resumed.

    CVE-2019-10167:
    The virConnectGetDomainCapabilities() libvirt API, versions 4.x.x before 4.10.1 and 5.x.x before 5.4.1,     accepts an emulatorbin argument to specify the program providing emulation for a domain. Since v1.2.19,     libvirt will execute that program to probe the domain's capabilities. Read-only clients could specify an     arbitrary path for this argument, causing libvirtd to execute a crafted executable with its own     privileges.

    CVE-2019-10168:
    The virConnectBaselineHypervisorCPU() and virConnectCompareHypervisorCPU() libvirt APIs, 4.x.x before     4.10.1 and 5.x.x before 5.4.1, accept an emulator argument to specify the program providing emulation     for a domain. Since v1.2.19, libvirt will execute that program to probe the domain's capabilities. Read-     only clients could specify an arbitrary path for this argument, causing libvirtd to execute a crafted     executable with its own privileges.

    CVE-2019-11135:
    TSX Asynchronous Abort condition on some CPUs utilizing speculative execution may allow an authenticated     user to potentially enable information disclosure via a side channel with local access.

    CVE-2019-12155:
    interface_release_resource in hw/display/qxl.c in QEMU 3.1.x through 4.0.0 has a NULL pointer dereference.

    CVE-2019-14378:
    ip_reass in ip_input.c in libslirp 4.0.0 has a heap-based buffer overflow via a large packet because it     mishandles a case involving the first fragment.

    CVE-2019-14842:
    Structured reply is a feature of the newstyle NBD protocol allowing the server to send a reply in chunks.
    A bounds check which was supposed to test for chunk offsets smaller than the beginning of the request did     not work because of signed/unsigned confusion. If one of these chunks contains a negative offset then data     under control of the server is written to memory before the read buffer supplied by the client. If the     read buffer is located on the stack then this allows the stack return address from nbd_pread() to be     trivially modified, allowing arbitrary code execution under the control of the server. If the buffer is     located on the heap then other memory objects before the buffer can be overwritten, which again would     usually lead to arbitrary code execution.

    CVE-2019-15890:
    libslirp 4.0.0, as used in QEMU 4.1.0, has a use-after-free in ip_reass in ip_input.c.

    CVE-2019-20485:
    qemu/qemu_driver.c in libvirt before 6.0.0 mishandles the holding of a monitor job during a query to a     guest agent, which allows attackers to cause a denial of service (API blockage).

    CVE-2019-6501:
    In QEMU 3.1, scsi_handle_inquiry_reply in hw/scsi/scsi-generic.c allows out-of-bounds write and read     operations.

    CVE-2019-6778:
    In QEMU 3.0.0, tcp_emu in slirp/tcp_subr.c has a heap-based buffer overflow.

    CVE-2020-10703:
    A NULL pointer dereference was found in the libvirt API responsible introduced in upstream version 3.10.0,     and fixed in libvirt 6.0.0, for fetching a storage pool based on its target path. In more detail, this     flaw affects storage pools created without a target path such as network-based pools like gluster and RBD.
    Unprivileged users with a read-only connection could abuse this flaw to crash the libvirt daemon,     resulting in a potential denial of service.

    CVE-2020-10756:
    An out-of-bounds read vulnerability was found in the SLiRP networking implementation of the QEMU emulator.
    This flaw occurs in the icmp6_send_echoreply() routine while replying to an ICMP echo request, also known     as ping. This flaw allows a malicious guest to leak the contents of the host memory, resulting in possible     information disclosure. This flaw affects versions of libslirp before 4.3.1.

    CVE-2020-11947:
    iscsi_aio_ioctl_cb in block/iscsi.c in QEMU 4.1.0 has a heap-based buffer over-read that may disclose     unrelated information from process memory to an attacker.

    CVE-2020-14301:
    An information disclosure vulnerability was found in libvirt in versions before 6.3.0. HTTP cookies used     to access network-based disks were saved in the XML dump of the guest domain. This flaw allows an attacker     to access potentially sensitive information in the domain configuration via the `dumpxml` command.

    CVE-2020-14339:
    A flaw was found in libvirt, where it leaked a file descriptor for `/dev/mapper/control` into the QEMU     process. This file descriptor allows for privileged operations to happen against the device-mapper on the     host. This flaw allows a malicious guest user or process to perform operations outside of their standard     permissions, potentially causing serious damage to the host operating system. The highest threat from this     vulnerability is to confidentiality, integrity, as well as system availability.

    CVE-2020-14364:
    An out-of-bounds read/write access flaw was found in the USB emulator of the QEMU in versions before     5.2.0. This issue occurs while processing USB packets from a guest when USBDevice 'setup_len' exceeds its     'data_buf[4096]' in the do_token_in, do_token_out routines. This flaw allows a guest user to crash the     QEMU process, resulting in a denial of service, or the potential execution of arbitrary code with the     privileges of the QEMU process on the host.

    CVE-2020-15859:
    QEMU 4.2.0 has a use-after-free in hw/net/e1000e_core.c because a guest OS user can trigger an e1000e     packet with the data's address set to the e1000e's MMIO address.

    CVE-2020-16092:
    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-2020-1711:
    An out-of-bounds heap buffer access flaw was found in the way the iSCSI Block driver in QEMU versions     2.12.0 before 4.2.1 handled a response coming from an iSCSI server while checking the status of a Logical     Address Block (LBA) in an iscsi_co_block_status() routine. A remote user could use this flaw to crash the     QEMU process, resulting in a denial of service or potential execution of arbitrary code with privileges of     the QEMU process on the host.

    CVE-2020-1983:
    A use after free vulnerability in ip_reass() in ip_input.c of libslirp 4.2.0 and prior releases allows     crafted packets to cause a denial of service.

    CVE-2020-25637:
    A double free memory issue was found to occur in the libvirt API, in versions before 6.8.0, responsible     for requesting information about network interfaces of a running QEMU domain. This flaw affects the polkit     access control driver. Specifically, clients connecting to the read-write socket with limited ACL     permissions could use this flaw to crash the libvirt daemon, resulting in a denial of service, or     potentially escalate their privileges on the system. The highest threat from this vulnerability is to data     confidentiality and integrity as well as system availability.

    CVE-2020-25723:
    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-2020-27821:
    A flaw was found in the memory management API of QEMU during the initialization of a memory region cache.
    This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO     operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial     of service. This flaw affects QEMU versions prior to 5.2.0.

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

    CVE-2020-29130:
    slirp.c in libslirp through 4.3.1 has a buffer over-read because it tries to read a certain amount of     header data even if that exceeds the total packet length.

    CVE-2020-29443:
    ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer     index is not validated.

    CVE-2020-7039:
    tcp_emu in tcp_subr.c in libslirp 4.1.0, as used in QEMU 4.2.0, mismanages memory, as demonstrated by IRC     DCC commands in EMU_IRC. This can cause a heap-based buffer overflow or other out-of-bounds access which     can lead to a DoS or potential execute arbitrary code.

    CVE-2021-20257:
    An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing     transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid     values. This flaw allows a guest to consume CPU cycles on the host, resulting in a denial of service. The     highest threat from this vulnerability is to system availability.

    CVE-2021-3592:
    An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw     exists in the bootp_input() function and could occur while processing a udp packet that is smaller than     the size of the 'bootp_t' structure. A malicious guest could use this flaw to leak 10 bytes of     uninitialized heap memory from the host. The highest threat from this vulnerability is to data     confidentiality. This flaw affects libslirp versions prior to 4.6.0.

    CVE-2021-3593:
    An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw     exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the     size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory     disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw     affects libslirp versions prior to 4.6.0.

    CVE-2021-3594:
    An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw     exists in the udp_input() function and could occur while processing a udp packet that is smaller than the     size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory     disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw     affects libslirp versions prior to 4.6.0.

    CVE-2021-3595:
    An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw     exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the     size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory     disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw     affects libslirp versions prior to 4.6.0.

    CVE-2021-3631:
    A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This     flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out     of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.

    CVE-2021-3667:
    An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in     the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly     released on ACL permission failure. Clients connecting to the read-write socket with limited ACL     permissions could use this flaw to acquire the lock and prevent other users from accessing storage     pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability     is to system availability.

    CVE-2021-3930:
    An off-by-one error was found in the SCSI device emulation in QEMU. It could occur while processing MODE     SELECT commands in mode_sense_page() if the 'page' argument was set to MODE_PAGE_ALLS (0x3f). A malicious     guest could use this flaw to potentially crash QEMU, resulting in a denial of service condition.

Tenable has extracted the preceding description block directly from the Alibaba Cloud Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for qemu fixes the following issues :

Fix OOB access in sm501 device emulation (CVE-2020-12829, bsc#1172385)

Fix OOB access possibility in MegaRAID SAS 8708EM2 emulation (CVE-2020-13362 bsc#1172383)

Fix use-after-free in usb xhci packet handling (CVE-2020-25723, bsc#1178934)

Fix use-after-free in usb ehci packet handling (CVE-2020-25084, bsc#1176673)

Fix OOB access in usb hcd-ohci emulation (CVE-2020-25624, bsc#1176682)

Fix infinite loop (DoS) in usb hcd-ohci emulation (CVE-2020-25625, bsc#1176684)

Fix guest triggerable assert in shared network handling code (CVE-2020-27617, bsc#1178174)

Fix OOB access in atapi emulation (CVE-2020-29443, bsc#1181108)

Fix NULL pointer deref. (DoS) in mmio ops (CVE-2020-15469, bsc#1173612)

Fix infinite loop (DoS) in e1000 device emulation (CVE-2021-20257, bsc#1182577)

Fix OOB access (stack overflow) in rtl8139 NIC emulation (CVE-2021-3416, bsc#1182968)

Fix OOB access (stack overflow) in other NIC emulations (CVE-2021-3416)

Fix OOB access in SLIRP ARP packet processing (CVE-2020-29130, bsc#1179467)

Fix NULL pointer dereference possibility (DoS) in MegaRAID SAS 8708EM2 emulation (CVE-2020-13659 bsc#1172386

Fix OOB access in iscsi (CVE-2020-11947 bsc#1180523)

Fix OOB access in vmxnet3 emulation (CVE-2021-20203 bsc#1181639)

Fix buffer overflow in the XGMAC device (CVE-2020-15863 bsc#1174386)

Fix DoS in packet processing of various emulated NICs (CVE-2020-16092 bsc#1174641)

Fix OOB access while processing USB packets (CVE-2020-14364 bsc#1175441)

Fix package scripts to not use hard-coded paths for temporary working directories and log files (bsc#1182425)

Fix potential privilege escalation in virtfs (CVE-2021-20181 bsc#1182137)

Fix OOB access possibility in ES1370 audio device emulation (CVE-2020-13361 bsc#1172384)

Fix OOB access in ROM loading (CVE-2020-13765 bsc#1172478)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
148752	SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1245-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/4	high
148757	SUSE SLES15 Security Update : qemu (SUSE-SU-2021:1244-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/3	high
140301	Debian DSA-4760-1 : qemu - security update	Nessus	Debian Local Security Checks	2020/9/8	2021/1/11	medium
149669	RHEL 8 : virt:rhel and virt-devel:rhel (RHSA-2021:1762)	Nessus	Red Hat Local Security Checks	2021/5/19	2025/9/24	medium
156489	EulerOS Virtualization 3.0.2.6 : qemu-kvm (EulerOS-SA-2021-2855)	Nessus	Huawei Local Security Checks	2022/1/6	2023/11/21	medium
208647	CentOS 7 : qemu-kvm-ma (RHSA-2021:0346)	Nessus	CentOS Local Security Checks	2024/10/9	2024/10/9	medium
223421	Linux Distros Unpatched Vulnerability : CVE-2020-16092	Nessus	Misc.	2025/3/4	2025/9/10	low
148758	SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1240-1)	Nessus	SuSE Local Security Checks	2021/4/19	2024/1/3	high
140317	EulerOS Virtualization for ARM 64 3.0.2.0 : qemu-kvm (EulerOS-SA-2020-1947)	Nessus	Huawei Local Security Checks	2020/9/8	2024/2/21	medium
140821	EulerOS Virtualization for ARM 64 3.0.6.0 : qemu-kvm (EulerOS-SA-2020-2054)	Nessus	Huawei Local Security Checks	2020/9/28	2024/2/19	low
143810	SUSE SLES12 Security Update : qemu (SUSE-SU-2020:2743-1)	Nessus	SuSE Local Security Checks	2020/12/9	2021/1/13	medium
146075	RHEL 7 : qemu-kvm (RHSA-2021:0347)	Nessus	Red Hat Local Security Checks	2021/2/3	2024/11/7	medium
146269	Oracle Linux 7 : qemu (ELSA-2021-9034)	Nessus	Oracle Linux Local Security Checks	2021/2/5	2024/11/2	medium
147918	Amazon Linux AMI : qemu-kvm (ALAS-2021-1488)	Nessus	Amazon Linux Local Security Checks	2021/3/20	2024/12/11	medium
236436	Alibaba Cloud Linux 3 : 0119: virt:rhel and virt-devel:rhel (ALINUX3-SA-2022:0119)	Nessus	Alibaba Cloud Linux Local Security Checks	2025/5/14	2025/5/15	critical
148966	SUSE SLES12 Security Update : qemu (SUSE-SU-2021:1305-1)	Nessus	SuSE Local Security Checks	2021/4/23	2024/1/3	high

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