openEuler 22.03 LTS update for qemu
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-3354 |
| CWE-ID | CWE-476 |
| 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-block-curl Operating systems & Components / Operating system package or component qemu-guest-agent Operating systems & Components / Operating system package or component qemu-system-arm Operating systems & Components / Operating system package or component qemu-system-riscv Operating systems & Components / Operating system package or component qemu-system-x86_64 Operating systems & Components / Operating system package or component qemu-debuginfo Operating systems & Components / Operating system package or component qemu-img Operating systems & Components / Operating system package or component qemu-debugsource Operating systems & Components / Operating system package or component qemu-block-iscsi Operating systems & Components / Operating system package or component qemu-system-aarch64 Operating systems & Components / Operating system package or component qemu-hw-usb-host Operating systems & Components / Operating system package or component qemu-block-rbd Operating systems & Components / Operating system package or component qemu-block-ssh 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) NULL pointer dereference
EUVDB-ID: #VU80015
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-3354
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in NULL pointer dereference and denial of service.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS
qemu-seabios: before 6.2.0-77
qemu-help: before 6.2.0-77
qemu-block-curl: before 6.2.0-77
qemu-guest-agent: before 6.2.0-77
qemu-system-arm: before 6.2.0-77
qemu-system-riscv: before 6.2.0-77
qemu-system-x86_64: before 6.2.0-77
qemu-debuginfo: before 6.2.0-77
qemu-img: before 6.2.0-77
qemu-debugsource: before 6.2.0-77
qemu-block-iscsi: before 6.2.0-77
qemu-system-aarch64: before 6.2.0-77
qemu-hw-usb-host: before 6.2.0-77
qemu-block-rbd: before 6.2.0-77
qemu-block-ssh: before 6.2.0-77
qemu: before 6.2.0-77
CPE2.3- cpe:2.3:o:openeuler:openeuler:22.03:LTS:*:*:*:*:*:*
- cpe:2.3:o:openeuler:qemu-seabios:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-curl:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-guest-agent:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-system-arm:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-system-riscv:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-system-x86_64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-img:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-iscsi:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-system-aarch64:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-hw-usb-host:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-rbd:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-ssh:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1736
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
