VulnerabilityModified
CVE-2022-1263
This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.
MEDIUM 5.5EPSS 0.44%
Does this matter?
Lower severity and a low EPSS score (0.44%). Track it; it rarely justifies an emergency change on its own.
Description
A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.44% probability · 37th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2022-1263Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/04/07/1Exploit, Mailing List, Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2022-1263Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2072698Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/5593473a1e6c743764b08e3b6071cb43b5cfa6c4Patch, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2022/04/07/1Exploit, Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.