openEuler update for qemu



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-4144
CWE-ID CWE-125
Exploitation vector Network
Public exploit N/A
Vulnerable software
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-debugsource
Operating systems & Components / Operating system package or component

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

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

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

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

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

Vendor openEuler

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU71136

Risk: Medium

CVSSv4.0: 2.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-4144

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the qxl_phys2virt() function in the QXL display device emulation in QEMU. A malicious guest user can trigger an out-of-bounds read error and crash the QEMU process on the host

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP1 - 22.03 LTS

qemu-seabios: before 4.1.0-72

qemu-help: before 4.1.0-72

qemu-debugsource: before 4.1.0-72

qemu-block-ssh: before 4.1.0-72

qemu-block-curl: before 4.1.0-72

qemu-img: before 4.1.0-72

qemu-debuginfo: before 4.1.0-72

qemu-guest-agent: before 4.1.0-72

qemu-block-rbd: before 4.1.0-72

qemu-block-iscsi: before 4.1.0-72

qemu: before 4.1.0-72

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-2136


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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



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