Denial of service in Linux kernel KVM implementation
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-1158 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Linux kernel Operating systems & Components / Operating system |
| Vendor | Linux Foundation |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU63166
Risk: Medium
CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-1158
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due the KVM implementation in Linux kernel does not properly perform guest page table updates in some situations. A remote user on the guest operating system can trigger memory corruption and perform a denial of service attack against the host OS.
Install updates from vendor's website.
Vulnerable software versionsLinux kernel: All versions
External linkshttp://seclists.org/oss-sec/2022/q2/22
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.
