发布时间: 2022年6月24日
修改时间: 2024年10月31日
A flaw was found in the libvirt nwfilter driver. The virNWFilterObjListNumOfNWFilters method failed to acquire the `driver->nwfilters` mutex before iterating over virNWFilterObj instances. There was no protection to stop another thread from concurrently modifying the `driver->nwfilters` object. This flaw allows a malicious, unprivileged user to exploit this issue via libvirt’s API virConnectNumOfNWFilters to crash the network filter management daemon (libvirtd/virtnwfilterd).
| NVD | openEuler | |
|---|---|---|
| Confidentiality | None | None |
| Attack Vector | Network | Network |
| CVSS评分 | 4.3 | 4.3 |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| Scope | Unchanged | Unchanged |
| Integrity | None | None |
| User Interaction | None | None |
| Availability | Low | Low |
| 公告名 | 概要 | 发布时间 |
|---|---|---|
| KylinSec-SA-2022-1597 | libvirt security update | 2022年6月24日 |
| 产品 | 包 | 状态 |
|---|---|---|
| KY3.4-4A | libvirt | Fixed |
| KY3.4-5 | libvirt | Fixed |
| KY3.5.1 | libvirt | Fixed |
