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CVE-2023-3212

MEDIUMCVSS 4.4/10EPSS 0.26%

Last modified

CVE-2023-3212 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. 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. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
4.4/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.26%

17.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
LinuxLinux Kernel< 6.4—
LinuxLinux Kernel6.4Rc1
FedoraprojectFedora38—
RedhatEnterprise Linux8.0—
RedhatEnterprise Linux9.0—
DebianDebian Linux10.0—
DebianDebian Linux11.0—
DebianDebian Linux12.0—
NetappH300s FirmwareAll versions—
NetappH500s FirmwareAll versions—
NetappH700s FirmwareAll versions—
NetappH410s FirmwareAll versions—
NetappH410c FirmwareAll versions—

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-3212?
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.
How severe is CVE-2023-3212?
CVE-2023-3212 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.
How do I fix CVE-2023-3212?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-3212?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST