medium
4.4
CWE
476
Advisory Published
CVE Published
Updated

CVE-2023-3212: Null Pointer Dereference

First published: Mon Jun 12 2023(Updated: )

A flaw in the Linux Kernel found in the GFS2 file system. On corrupted gfs2 file systems the evict code can try to reference the journal descriptor structure, jdesc, after it has been freed and set to NULL. It can lead to null pointer dereference when gfs2_trans_begin being called and then fail ingfs2_evict_inode(). Reference: <a href="https://listman.redhat.com/archives/cluster-devel/2023-April/023914.html">https://listman.redhat.com/archives/cluster-devel/2023-April/023914.html</a>

Credit: secalert@redhat.com secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel<6.4
6.4
IBM Security Verify Governance - Identity Manager<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager<=ISVG 10.0.2
Linux kernel<6.4
Linux kernel=6.4-rc1
Fedora=38
Red Hat Enterprise Linux=8.0
Red Hat Enterprise Linux=9.0
Linux Kernel<6.4
Linux Kernel=6.4-rc1
Debian=10.0
Debian=11.0
Debian=12.0
All of
NetApp H300S Firmware
NetApp H300S Firmware
All of
NetApp H500e Firmware
NetApp H500e Firmware
All of
NetApp H700S
NetApp H700S
All of
NetApp H410S
NetApp H410S Firmware
All of
NetApp H410C
NetApp H410C Firmware
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=2214348

Remedy

https://github.com/torvalds/linux/commit/504a10d9e46bc37b23d0a1ae2f28973c8516e636

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2023-3212?

    CVE-2023-3212 is classified as a high severity vulnerability that can lead to a system crash due to a null pointer dereference.

  • How do I fix CVE-2023-3212?

    To fix CVE-2023-3212, upgrade to the latest kernel version as specified in vendor advisories.

  • Which systems are affected by CVE-2023-3212?

    CVE-2023-3212 affects various Linux distributions, including Red Hat, Fedora, and Debian up to specific versions.

  • Is there a patch available for CVE-2023-3212?

    Yes, patches for CVE-2023-3212 are included in the kernel updates provided by affected Linux distributions.

  • What are the consequences of exploiting CVE-2023-3212?

    Exploitation of CVE-2023-3212 can lead to a null pointer dereference, potentially causing system instability or crashes.

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