NULL pointer dereference in Linux Kernel
CVE-2022-2153
A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. 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.
EPSS: 0.004 (36.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux Linux_kernel
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 36
- Redhat Enterprise_linux — versions 6.0, 7.0, 8.0
- N/a Kernel — versions kernel 5.18
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Exploit, Patch, Mailing List, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (Patch, Third Party Advisory)
- secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)
- secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-2153?
- CVE-2022-2153 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-08-31.
- How severe is CVE-2022-2153?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2022-2153 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.