CVE-2023-3212NULL Pointer Dereference in Kernel

Severity
4.4MEDIUMNVD
OSV7.8OSV7.0OSV6.5OSV4.7OSV4.1
EPSS
0.0%
top 98.29%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedJun 23
Latest updateFeb 15

Description

A NULL pointer dereference issue was found in the gfs2 file system in the Linux kernel. It occurs on corrupt gfs2 file systems when the evict code tries to reference the journal descriptor structure after it has been freed and set to NULL. A privileged local user could use this flaw to cause a kernel panic.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:HExploitability: 0.8 | Impact: 3.6

Affected Packages3 packages

NVDlinux/linux_kernel< 6.4+1
Debianlinux/linux_kernel< 5.10.191-1+3
Ubuntulinux/linux_kernel< 5.4.0-164.181+3

Also affects: Debian Linux 10.0, 11.0, 12.0, Enterprise Linux 8.0, 9.0, Fedora 38

Patches

🔴Vulnerability Details

17
OSV
linux-nvidia-6.2 vulnerabilities2023-10-31
OSV
linux-azure vulnerabilities2023-10-17
OSV
linux-kvm vulnerabilities2023-10-05
OSV
linux, linux-aws, linux-aws-6.2, linux-azure, linux-azure-6.2, linux-azure-fde-6.2, linux-gcp, linux-gcp-6.2, linux-hwe-6.2, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-oracle, linux-2023-10-05
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linu2023-10-04

📋Vendor Advisories

17
CISA ICS
Siemens SCALANCE XCM-/XRM-3002024-02-15
Ubuntu
Linux kernel (NVIDIA) vulnerabilities2023-10-31
Ubuntu
Linux kernel (Azure) vulnerabilities2023-10-17
Ubuntu
Linux kernel vulnerabilities2023-10-05
Ubuntu
Linux kernel (KVM) vulnerabilities2023-10-05

💬Community

1
Bugzilla
CVE-2023-3212 kernel: gfs2: NULL pointer dereference in gfs2_evict_inode()2023-06-12
CVE-2023-3212 — NULL Pointer Dereference in Kernel | cvebase