NULL pointer dereference in Linux Kernel
CVE-2022-1789
With shadow paging enabled, the INVPCID instruction results in a call to kvm_mmu_invpcid_gva. If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (23.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Linux Kernel
- Debian Linux — versions 11.0
- Fedoraproject Fedora — versions 34, 35, 36
- Red Hat Enterprise Linux — versions 9.0
- Kernel — versions no patch information available yet
Weakness classification (CWE)
References
- francozappa.github.io/about-bias/ (Not Applicable)
- bugzilla.redhat.com/show_bug.cgi (Not Applicable)
- kb.cert.org/vuls/id/647177/ (Not Applicable)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2022/dsa-5161 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-1789?
- CVE-2022-1789 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 6.8/10. Published 2022-06-02.
- How severe is CVE-2022-1789?
- Medium severity. CVSS v3 base score is 6.8 out of 10.