SUSE SLES12 Security Update : qemu (SUSE-SU-2021:2448-1)

low Nessus Plugin ID 152056

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Synopsis

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

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2448-1 advisory.

- 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)

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/1185591

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

http://www.nessus.org/u?4d98f442

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

Plugin Details

Severity: Low

ID: 152056

File Name: suse_SU-2021-2448-1.nasl

Version: 1.3

Type: local

Agent: unix

Published: 7/23/2021

Updated: 8/9/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

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

CVSS Score Source: CVE-2021-3595

CVSS v3

Risk Factor: Low

Base Score: 3.8

Temporal Score: 3.3

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

Temporal Vector: E:U/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-audio-sdl, 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-ui-sdl, p-cpe:/a:novell:suse_linux:qemu-vgabios, p-cpe:/a:novell:suse_linux:qemu-x86, cpe:/o:novell:suse_linux:12

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: 7/22/2021

Vulnerability Publication Date: 6/15/2021

Reference Information

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

SuSE: SUSE-SU-2021:2448-1