VulnerabilityModified
CVE-2022-1789
If INVPCID is executed with CR0.PG=0, the invlpg callback is not set and the result is a NULL pointer dereference.
MEDIUM 6.8EPSS 0.32%
Does this matter?
Lower severity and a low EPSS score (0.32%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.32% probability · 25th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel · fedoraproject/fedora · redhat/enterprise linux · debian/debian linux
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1832397Not Applicable
- https://francozappa.github.io/about-bias/Not Applicable
- https://kb.cert.org/vuls/id/647177/Not Applicable
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6JP355XFVAB33X4BNO3ERVTURFYEDB7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IBUOQTNTQ4ZCXHOCNKYIL2ZUIAZ675RD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KCEAPIVPRTJHKPF2A2HVF5XHD5XJT3MN/
- https://www.debian.org/security/2022/dsa-5161Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1832397Not Applicable
- https://francozappa.github.io/about-bias/Not Applicable
- https://kb.cert.org/vuls/id/647177/Not Applicable
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/H6JP355XFVAB33X4BNO3ERVTURFYEDB7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IBUOQTNTQ4ZCXHOCNKYIL2ZUIAZ675RD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KCEAPIVPRTJHKPF2A2HVF5XHD5XJT3MN/
- https://www.debian.org/security/2022/dsa-5161Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.