The following CVE(s) were reported against src:qemu :

CVE-2017-9503

QEMU (aka Quick Emulator), when built with MegaRAID SAS 8708EM2 Host Bus Adapter emulation support, allows local guest OS privileged users to cause a denial of service (NULL pointer dereference and QEMU process crash) via vectors involving megasas command processing.

CVE-2019-12068

In QEMU 1:4.1-1 (1:2.8+dfsg-6+deb9u8), when executing script in lsi_execute_script(), the LSI scsi adapter emulator advances 's->dsp' index to read next opcode. This can lead to an infinite loop if the next opcode is empty. Move the existing loop exit after 10k iterations so that it covers no-op opcodes as well.

CVE-2019-20382

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-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-2020-8608

In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.

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-2020-13361

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-2020-13362

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-2020-13659

address_space_map in exec.c in QEMU 4.2.0 can trigger a NULL pointer dereference related to BounceBuffer.

CVE-2020-13754

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-2020-13765

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-2020-15863

Stack-based overflow in xgmac_enet_send() in hw/net/xgmac.c.

For Debian 9 stretch, these problems have been fixed in version 1:2.8+dfsg-6+deb9u10.

We recommend that you upgrade your qemu packages.

For the detailed security status of qemu please refer to its security tracker page at: https://security-tracker.debian.org/tracker/qemu

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

The remote CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CESA-2020:4694 advisory.

  - containernetworking/plugins: IPv6 router advertisements allow for MitM attacks on IPv4 clusters     (CVE-2020-10749)

  - QEMU: slirp: networking out-of-bounds read information disclosure vulnerability (CVE-2020-10756)

  - golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash     (CVE-2020-14040)

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

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1043-1 advisory.

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

  - 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-2020-10756)

  - 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-2020-14364)

  - 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)

  - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. Reason: This candidate is a duplicate of CVE-2020-28916     (CVE-2020-25707)

  - 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)

  - ncsi.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-2020-29129)

  - 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-2020-29130)

  - In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer     overflow in later code. (CVE-2020-8608)

  - ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by     its CNA. Notes: none. (CVE-2021-3419)

  - Several memory leaks were found in the virtio vhost-user GPU device (vhost-user-gpu) of QEMU in versions     up to and including 6.0. They exist in contrib/vhost-user-gpu/vhost-user-gpu.c and contrib/vhost-user-     gpu/virgl.c due to improper release of memory (i.e., free) after effective lifetime. (CVE-2021-3544)

  - An information disclosure vulnerability was found in the virtio vhost-user GPU device (vhost-user-gpu) of     QEMU in versions up to and including 6.0. The flaw exists in virgl_cmd_get_capset_info() in contrib/vhost-     user-gpu/virgl.c and could occur due to the read of uninitialized memory. A malicious guest could exploit     this issue to leak memory from the host. (CVE-2021-3545)

  - A flaw was found in vhost-user-gpu of QEMU in versions up to and including 6.0. An out-of-bounds write     vulnerability can allow a malicious guest to crash the QEMU process on the host resulting in a denial of     service or potentially execute arbitrary code on the host with the privileges of the QEMU process. The     highest threat from this vulnerability is to data confidentiality and integrity as well as system     availability. (CVE-2021-3546)

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

ID	Name	Product	Family	Published	Updated	Severity
138911	Debian DLA-2288-1 : qemu security update	Nessus	Debian Local Security Checks	7/27/2020	2/28/2024	medium
145914	CentOS 8 : container-tools:rhel8 (CESA-2020:4694)	Nessus	CentOS Local Security Checks	2/1/2021	1/24/2024	medium
151619	openSUSE 15 Security Update : qemu (openSUSE-SU-2021:1043-1)	Nessus	SuSE Local Security Checks	7/14/2021	12/8/2023	high

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