openEuler update for qemu
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-13253 CVE-2021-20257 |
| CWE-ID | CWE-125 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-debuginfo 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-block-iscsi 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-rbd Operating systems & Components / Operating system package or component qemu-debugsource 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 read
EUVDB-ID: #VU28283
Risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-13253
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the SD Memory Card emulator while performing block write commands via sdhci_write() in QEMU. A remote user of guest operating system can trigger out-of-bounds read error and crash the QEMU process.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP3
qemu-seabios: before 4.1.0-65
qemu-help: before 4.1.0-65
qemu-debuginfo: before 4.1.0-65
qemu-block-ssh: before 4.1.0-65
qemu-block-curl: before 4.1.0-65
qemu-block-iscsi: before 4.1.0-65
qemu-img: before 4.1.0-65
qemu-guest-agent: before 4.1.0-65
qemu-block-rbd: before 4.1.0-65
qemu-debugsource: before 4.1.0-65
qemu: before 4.1.0-65
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:qemu-seabios:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-ssh:*:*:*:*:*: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-img:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-guest-agent:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-rbd:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1690
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.
2) Infinite loop
EUVDB-ID: #VU59085
Risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-20257
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the e1000 NIC emulator when processing transmits (tx) descriptors in process_tx_desc of QEMU. A remote user can consume all available CPU resources and cause denial of service conditions.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP3
qemu-seabios: before 4.1.0-65
qemu-help: before 4.1.0-65
qemu-debuginfo: before 4.1.0-65
qemu-block-ssh: before 4.1.0-65
qemu-block-curl: before 4.1.0-65
qemu-block-iscsi: before 4.1.0-65
qemu-img: before 4.1.0-65
qemu-guest-agent: before 4.1.0-65
qemu-block-rbd: before 4.1.0-65
qemu-debugsource: before 4.1.0-65
qemu: before 4.1.0-65
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:qemu-seabios:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-ssh:*:*:*:*:*: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-img:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-guest-agent:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-block-rbd:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:o:openeuler:qemu:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1690
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.
