openEuler update for qemu
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-14394 |
| CWE-ID | CWE-835 |
| 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-block-iscsi Operating systems & Components / Operating system package or component qemu-debugsource Operating systems & Components / Operating system package or component qemu-img Operating systems & Components / Operating system package or component qemu-guest-agent Operating systems & Components / Operating system package or component qemu-block-ssh Operating systems & Components / Operating system package or component qemu-block-rbd Operating systems & Components / Operating system package or component qemu-debuginfo 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) Infinite loop
EUVDB-ID: #VU73788
Risk: Medium
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-14394
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows an attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the USB xHCI controller emulation of QEMU while computing the length of the Transfer Request Block (TRB) Ring. A privileged user on the guest OS can consume all available system resources and cause denial of service conditions of the QEMU process on the host.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 22.03 LTS
qemu-seabios: before 4.1.0-70
qemu-help: before 4.1.0-70
qemu-block-curl: before 4.1.0-70
qemu-block-iscsi: before 4.1.0-70
qemu-debugsource: before 4.1.0-70
qemu-img: before 4.1.0-70
qemu-guest-agent: before 4.1.0-70
qemu-block-ssh: before 4.1.0-70
qemu-block-rbd: before 4.1.0-70
qemu-debuginfo: before 4.1.0-70
qemu: before 4.1.0-70
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
- 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-block-iscsi:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-img:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-guest-agent:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-ssh:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-rbd:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1918
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
