Security Advisory - Buffer Overflow Vulnerability in QEMU-KVM
- SA No:huawei-sa-20200115-01-qemu
- Initial Release Date: Jan 15, 2020
- Last Release Date: Aug 19, 2020
There is a buffer overflow vulnerability in the vhost module of QEMU-KVM. During the hot migration of the target VM, an attacker with guest user account may send descriptors with invalid length to the affected host to exploit this vulnerability. Successfully exploited may cause the kernel buffer overflow and triggered to VM escape. (Vulnerability ID: HWPSIRT-2019-09112)
This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2019-14835.
Huawei has released software updates to fix this vulnerability. This advisory is available at the following link:
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en
|
Product Name |
Affected Version |
Resolved Product and Version |
|
ManageOne |
6.5.0 |
6.5.1.SPC203 |
|
6.5.0.SPC100.B210 |
||
|
6.5.1RC1.B060 |
||
|
6.5.1RC1.B080 |
||
|
6.5.RC2.B050 |
||
|
iManager NetEco |
V600R009C00 |
iManager NetEco 6000 V600R008C10SPC570 |
|
V600R009C10SPC200 |
||
|
iManager NetEco 6000 |
V600R008C10SPC300 |
V600R008C10SPC580 |
|
V600R008C20 |
Successfully exploited may cause the kernel buffer overflow and triggered to VM escape.
The vulnerability classification has been performed by using the CVSSv3 scoring system (http://www.first.org/cvss/specification-document).
Base Score: 7.2 (AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H)Temporal Score: 6.7 (E:F/RL:O/RC:C)
This vulnerability can be exploited only when the following conditions are present:
Opened the hot migration on the target VM.
Vulnerability details:
During the hot migration of the target VM, an attacker with guest user account may send descriptors with invalid length to the affected host to exploit this vulnerability. Successfully exploited may cause the kernel buffer overflow and triggered to VM escape.
Customers should contact Huawei TAC (Huawei Technical Assistance Center) to request the upgrades. For TAC contact information, please refer to Huawei worldwide website at http://www.huawei.com/en/psirt/report-vulnerabilities.
This vulnerability was disclosed by the Linux kernel community.
2020-08-19 V1.3 UPDATED Updated the "Software Versions and Fixes" section;
2020-07-29 V1.2 UPDATED Updated the "Software Versions and Fixes" section;
2020-07-15 V1.1 UPDATED Updated the "Software Versions and Fixes" section;
2020-01-15 V1.0 INITIAL
None
Huawei adheres to protecting the ultimate interests of users with best efforts and the principle of responsible disclosure and deal with product security issues through our response mechanism.
To enjoy Huawei PSIRT services and obtain Huawei product vulnerability information, please visit http://www.huawei.com/en/psirt.
To report a security vulnerability in Huawei products and solutions, please send it to PSIRT@huawei.com. For details, please visit http://www.huawei.com/en/psirt/report-vulnerabilities.
