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.

Plugin Details

Severity: Medium

ID: 151714

File Name: openSUSE-2021-1942.nasl

Version: 1.5

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/16/2021

Updated: 12/8/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2020-8608

CVSS v3

Risk Factor: Medium

Base Score: 6.3

Temporal Score: 5.7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2020-17380

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/11/2021

Vulnerability Publication Date: 9/6/2019

Reference Information

CVE: CVE-2019-15890, 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-2020-8608, CVE-2021-20263, CVE-2021-3409, CVE-2021-3416, CVE-2021-3419

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

Detections

Analytics

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

medium Nessus Plugin ID 151714

Synopsis

Description

Solution

See Also

Plugin Details

Risk Information

VPR

CVSS v2

CVSS v3

Vulnerability Information

Reference Information