openEuler 22.03 LTS update for qemu



Published: 2022-10-14
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-3638
CVE-2022-2962
CWE-ID CWE-787
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe 		openEuler
Operating systems & Components / Operating system

qemu-seabios
Operating systems & Components / Operating system package or component

qemu-help
Operating systems & Components / Operating system package or component

qemu-system-x86_64
Operating systems & Components / Operating system package or component

qemu-debugsource
Operating systems & Components / Operating system package or component

qemu-system-arm
Operating systems & Components / Operating system package or component

qemu-block-ssh
Operating systems & Components / Operating system package or component

qemu-system-riscv
Operating systems & Components / Operating system package or component

qemu-img
Operating systems & Components / Operating system package or component

qemu-block-rbd
Operating systems & Components / Operating system package or component

qemu-block-iscsi
Operating systems & Components / Operating system package or component

qemu-guest-agent
Operating systems & Components / Operating system package or component

qemu-system-aarch64
Operating systems & Components / Operating system package or component

qemu-block-curl
Operating systems & Components / Operating system package or component

qemu-debuginfo
Operating systems & Components / Operating system package or component

qemu-hw-usb-host
Operating systems & Components / Operating system package or component

qemu
Operating systems & Components / Operating system package or component

Vendor openEuler

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds write

EUVDB-ID: #VU72306

Risk: Medium

CVSSv3.1: 4.9 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-3638

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in the ATI VGA device emulation of QEMU within the ati_2d_blt() routine while handling MMIO write operations. A malicious guest can crash the QEMU process on the host.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

qemu-seabios: before 6.2.0-52

qemu-help: before 6.2.0-52

qemu-system-x86_64: before 6.2.0-52

qemu-debugsource: before 6.2.0-52

qemu-system-arm: before 6.2.0-52

qemu-block-ssh: before 6.2.0-52

qemu-system-riscv: before 6.2.0-52

qemu-img: before 6.2.0-52

qemu-block-rbd: before 6.2.0-52

qemu-block-iscsi: before 6.2.0-52

qemu-guest-agent: before 6.2.0-52

qemu-system-aarch64: before 6.2.0-52

qemu-block-curl: before 6.2.0-52

qemu-debuginfo: before 6.2.0-52

qemu-hw-usb-host: before 6.2.0-52

qemu: before 6.2.0-52

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1997


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Out-of-bounds write

EUVDB-ID: #VU75178

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2962

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the Tulip device emulation in QEMU. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges on the host OS.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

qemu-seabios: before 6.2.0-52

qemu-help: before 6.2.0-52

qemu-system-x86_64: before 6.2.0-52

qemu-debugsource: before 6.2.0-52

qemu-system-arm: before 6.2.0-52

qemu-block-ssh: before 6.2.0-52

qemu-system-riscv: before 6.2.0-52

qemu-img: before 6.2.0-52

qemu-block-rbd: before 6.2.0-52

qemu-block-iscsi: before 6.2.0-52

qemu-guest-agent: before 6.2.0-52

qemu-system-aarch64: before 6.2.0-52

qemu-block-curl: before 6.2.0-52

qemu-debuginfo: before 6.2.0-52

qemu-hw-usb-host: before 6.2.0-52

qemu: before 6.2.0-52

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1997


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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