openSUSE 15 Security Update : qemu (openSUSE-SU-2021:1942-1)

medium Nessus Plugin ID 151714

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Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1942-1 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/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)

- 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)

- ** 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)

- 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-2020-27821)

- 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)

- A flaw was found in the virtio-fs shared file system daemon (virtiofsd) of QEMU. The new 'xattrmap' option may cause the 'security.capability' xattr in the guest to not drop on file write, potentially leading to a modified, privileged executable in the guest. In rare circumstances, this flaw could be used by a malicious user to elevate their privileges within the guest. (CVE-2021-20263)

- 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)

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 Reason: This candidate was withdrawn by its CNA.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

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

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1149813

https://bugzilla.suse.com/1163019

https://bugzilla.suse.com/1175144

https://bugzilla.suse.com/1175534

https://bugzilla.suse.com/1176681

https://bugzilla.suse.com/1178683

https://bugzilla.suse.com/1178935

https://bugzilla.suse.com/1179477

https://bugzilla.suse.com/1179484

https://bugzilla.suse.com/1179686

https://bugzilla.suse.com/1181103

https://bugzilla.suse.com/1182282

https://bugzilla.suse.com/1182425

https://bugzilla.suse.com/1182968

https://bugzilla.suse.com/1182975

https://bugzilla.suse.com/1183373

https://bugzilla.suse.com/1186290

http://www.nessus.org/u?47e6ea4b

https://www.suse.com/security/cve/CVE-2019-15890

https://www.suse.com/security/cve/CVE-2020-14364

https://www.suse.com/security/cve/CVE-2020-17380

https://www.suse.com/security/cve/CVE-2020-25085

https://www.suse.com/security/cve/CVE-2020-25707

https://www.suse.com/security/cve/CVE-2020-25723

https://www.suse.com/security/cve/CVE-2020-27821

https://www.suse.com/security/cve/CVE-2020-29129

https://www.suse.com/security/cve/CVE-2020-29130

https://www.suse.com/security/cve/CVE-2020-8608

https://www.suse.com/security/cve/CVE-2021-20263

https://www.suse.com/security/cve/CVE-2021-3409

https://www.suse.com/security/cve/CVE-2021-3416

https://www.suse.com/security/cve/CVE-2021-3419

Plugin Details

Severity: Medium

ID: 151714

File Name: openSUSE-2021-1942.nasl

Version: 1.4

Type: local

Agent: unix

Published: 7/16/2021

Updated: 11/21/2022

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2020-8608

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Temporal Vector: E:U/RL:O/RC:C

CVSS Score Source: CVE-2020-17380

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:qemu, p-cpe:/a:novell:opensuse:qemu-arm, p-cpe:/a:novell:opensuse:qemu-audio-alsa, p-cpe:/a:novell:opensuse:qemu-audio-pa, p-cpe:/a:novell:opensuse:qemu-audio-spice, p-cpe:/a:novell:opensuse:qemu-block-curl, p-cpe:/a:novell:opensuse:qemu-block-dmg, p-cpe:/a:novell:opensuse:qemu-block-gluster, p-cpe:/a:novell:opensuse:qemu-block-iscsi, p-cpe:/a:novell:opensuse:qemu-block-nfs, p-cpe:/a:novell:opensuse:qemu-block-rbd, p-cpe:/a:novell:opensuse:qemu-block-ssh, p-cpe:/a:novell:opensuse:qemu-chardev-baum, p-cpe:/a:novell:opensuse:qemu-chardev-spice, p-cpe:/a:novell:opensuse:qemu-extra, p-cpe:/a:novell:opensuse:qemu-guest-agent, p-cpe:/a:novell:opensuse:qemu-hw-display-qxl, p-cpe:/a:novell:opensuse:qemu-hw-display-virtio-gpu, p-cpe:/a:novell:opensuse:qemu-hw-display-virtio-gpu-pci, p-cpe:/a:novell:opensuse:qemu-hw-display-virtio-vga, p-cpe:/a:novell:opensuse:qemu-hw-s390x-virtio-gpu-ccw, p-cpe:/a:novell:opensuse:qemu-hw-usb-redirect, p-cpe:/a:novell:opensuse:qemu-hw-usb-smartcard, p-cpe:/a:novell:opensuse:qemu-ipxe, p-cpe:/a:novell:opensuse:qemu-ivshmem-tools, p-cpe:/a:novell:opensuse:qemu-ksm, p-cpe:/a:novell:opensuse:qemu-kvm, p-cpe:/a:novell:opensuse:qemu-lang, p-cpe:/a:novell:opensuse:qemu-microvm, p-cpe:/a:novell:opensuse:qemu-ppc, p-cpe:/a:novell:opensuse:qemu-s390x, p-cpe:/a:novell:opensuse:qemu-seabios, p-cpe:/a:novell:opensuse:qemu-sgabios, p-cpe:/a:novell:opensuse:qemu-skiboot, p-cpe:/a:novell:opensuse:qemu-tools, p-cpe:/a:novell:opensuse:qemu-ui-curses, p-cpe:/a:novell:opensuse:qemu-ui-gtk, p-cpe:/a:novell:opensuse:qemu-ui-opengl, p-cpe:/a:novell:opensuse:qemu-ui-spice-app, p-cpe:/a:novell:opensuse:qemu-ui-spice-core, p-cpe:/a:novell:opensuse:qemu-vgabios, p-cpe:/a:novell:opensuse:qemu-vhost-user-gpu, p-cpe:/a:novell:opensuse:qemu-x86, cpe:/o:novell:opensuse:15.3

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 7/11/2021

Vulnerability Publication Date: 9/6/2019

Reference Information

CVE: CVE-2019-15890, CVE-2020-8608, CVE-2020-14364, CVE-2020-17380, CVE-2020-25085, CVE-2020-25707, CVE-2020-25723, CVE-2020-27821, CVE-2020-29129, CVE-2020-29130, CVE-2021-3409, CVE-2021-3416, CVE-2021-3419, CVE-2021-20263

IAVB: 2020-B-0063-S, 2020-B-0075-S