SUSE SLES15 Security Update : qemu (SUSE-SU-2021:2591-1)

medium Nessus Plugin ID 152185

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Synopsis

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

Description

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2591-1 advisory.

- 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)

- A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device. The issue occurs while handling a PVRDMA_CMD_CREATE_MR command due to improper memory remapping (mremap). This flaw allows a malicious guest to crash the QEMU process on the host. The highest threat from this vulnerability is to system availability. (CVE-2021-3582)

- 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-2021-3592)

- 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-2021-3593)

- 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-2021-3594)

- 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-2021-3595)

- An integer overflow was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a PVRDMA_REG_DSRHIGH write from the guest due to improper input validation. This flaw allows a privileged guest user to make QEMU allocate a large amount of memory, resulting in a denial of service. The highest threat from this vulnerability is to system availability. (CVE-2021-3607)

- A flaw was found in the QEMU implementation of VMWare's paravirtual RDMA device in versions prior to 6.1.0. The issue occurs while handling a PVRDMA_REG_DSRHIGH write from the guest and may result in a crash of QEMU or cause undefined behavior due to the access of an uninitialized pointer. The highest threat from this vulnerability is to system availability. (CVE-2021-3608)

- A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0. (CVE-2021-3611)

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

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1176681

https://bugzilla.suse.com/1185591

https://bugzilla.suse.com/1186290

https://bugzilla.suse.com/1187364

https://bugzilla.suse.com/1187365

https://bugzilla.suse.com/1187366

https://bugzilla.suse.com/1187367

https://bugzilla.suse.com/1187499

https://bugzilla.suse.com/1187529

https://bugzilla.suse.com/1187538

https://bugzilla.suse.com/1187539

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

https://www.suse.com/security/cve/CVE-2021-3582

https://www.suse.com/security/cve/CVE-2021-3592

https://www.suse.com/security/cve/CVE-2021-3593

https://www.suse.com/security/cve/CVE-2021-3594

https://www.suse.com/security/cve/CVE-2021-3595

https://www.suse.com/security/cve/CVE-2021-3607

https://www.suse.com/security/cve/CVE-2021-3608

https://www.suse.com/security/cve/CVE-2021-3611

http://www.nessus.org/u?c785edbe

Plugin Details

Severity: Medium

ID: 152185

File Name: suse_SU-2021-2591-1.nasl

Version: 1.5

Type: local

Agent: unix

Published: 8/3/2021

Updated: 7/13/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.4

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

CVSS Score Source: CVE-2020-25085

CVSS v3

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.5

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

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

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:qemu, p-cpe:/a:novell:suse_linux:qemu-arm, p-cpe:/a:novell:suse_linux:qemu-audio-alsa, p-cpe:/a:novell:suse_linux:qemu-audio-oss, p-cpe:/a:novell:suse_linux:qemu-audio-pa, p-cpe:/a:novell:suse_linux:qemu-block-curl, p-cpe:/a:novell:suse_linux:qemu-block-iscsi, p-cpe:/a:novell:suse_linux:qemu-block-rbd, p-cpe:/a:novell:suse_linux:qemu-block-ssh, p-cpe:/a:novell:suse_linux:qemu-guest-agent, p-cpe:/a:novell:suse_linux:qemu-ipxe, p-cpe:/a:novell:suse_linux:qemu-kvm, p-cpe:/a:novell:suse_linux:qemu-lang, p-cpe:/a:novell:suse_linux:qemu-ppc, p-cpe:/a:novell:suse_linux:qemu-s390, p-cpe:/a:novell:suse_linux:qemu-seabios, p-cpe:/a:novell:suse_linux:qemu-sgabios, p-cpe:/a:novell:suse_linux:qemu-tools, p-cpe:/a:novell:suse_linux:qemu-ui-curses, p-cpe:/a:novell:suse_linux:qemu-ui-gtk, p-cpe:/a:novell:suse_linux:qemu-vgabios, p-cpe:/a:novell:suse_linux:qemu-x86, cpe:/o:novell:suse_linux:15

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: 8/2/2021

Vulnerability Publication Date: 9/25/2020

Reference Information

CVE: CVE-2020-25085, CVE-2021-3582, CVE-2021-3592, CVE-2021-3593, CVE-2021-3594, CVE-2021-3595, CVE-2021-3607, CVE-2021-3608, CVE-2021-3611

IAVB: 2020-B-0063-S

SuSE: SUSE-SU-2021:2591-1