openEuler 20.03 LTS SP1 update for qemu
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-15469 |
| CWE-ID | CWE-476 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| 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-guest-agent Operating systems & Components / Operating system package or component qemu-img Operating systems & Components / Operating system package or component qemu-block-ssh 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-debuginfo Operating systems & Components / Operating system package or component qemu-block-rbd 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 low risk vulnerability.
1) NULL pointer dereference
EUVDB-ID: #VU29545
Risk: Low
CVSSv4.0: 5.7 [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:P/U:Clear]
CVE-ID: CVE-2020-15469
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 QEMU. A remote attacker can trigger the MemoryRegionOps object to lack read/write callback methods, leading to a NULL pointer dereference.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1
qemu-seabios: before 4.1.0-46
qemu-help: before 4.1.0-46
qemu-guest-agent: before 4.1.0-46
qemu-img: before 4.1.0-46
qemu-block-ssh: before 4.1.0-46
qemu-block-iscsi: before 4.1.0-46
qemu-debugsource: before 4.1.0-46
qemu-debuginfo: before 4.1.0-46
qemu-block-rbd: before 4.1.0-46
qemu: before 4.1.0-46
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:a:openeuler:qemu-seabios:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-guest-agent:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-img:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-block-ssh:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-block-iscsi:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu-block-rbd:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:qemu:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1211
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. However, proof of concept for this vulnerability is available.
