high
8.8
CWE
416 415
Advisory Published
CVE Published
CVE Published
Updated

CVE-2023-5178: Kernel: use after free in nvmet_tcp_free_crypto in nvme

First published: Tue Oct 03 2023(Updated: )

A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` in `nvmet_tcp_free_crypto` due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. In this flaw, a malicious user can cause a UAF and a double free, which may lead to RCE (may also lead to an LPE in case the attacker already has local privileges). Reference: <a href="https://lore.kernel.org/linux-nvme/20231002105428.226515-1-sagi@grimberg.me/">https://lore.kernel.org/linux-nvme/20231002105428.226515-1-sagi@grimberg.me/</a>

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

Affected SoftwareAffected VersionHow to fix
IBM Security Guardium<=11.4
IBM Security Guardium<=11.5
IBM Security Guardium<=12.0
Linux Linux kernel>=5.0<5.4.260
Linux Linux kernel>=5.5<5.10.199
Linux Linux kernel>=5.11<5.15.137
Linux Linux kernel>=5.16<6.1.60
Linux Linux kernel>=6.2<6.5.9
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux=9.0
Netapp Active Iq Unified Manager Vmware Vsphere
Netapp Solidfire \& Hci Management Node
Netapp Solidfire \& Hci Storage Node
redhat/Kernel<6.6
6.6
debian/linux
5.10.223-1
5.10.226-1
6.1.115-1
6.1.112-1
6.11.7-1
6.11.9-1

Remedy

https://lore.kernel.org/linux-nvme/20231002105428.226515-1-sagi@grimberg.me/

Remedy

https://git.kernel.org/linus/872d26a391da92ed8f0c0f5cb5fef428067b7f30

Remedy

https://git.kernel.org/linus/d920abd1e7c4884f9ecd0749d1921b7ab19ddfbd

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-5178?

    CVE-2023-5178 is a use-after-free vulnerability in the Linux NVMe-oF/TCP Driver.

  • What is the severity of CVE-2023-5178?

    The severity of CVE-2023-5178 is high with a CVSS score of 8.8.

  • How does CVE-2023-5178 impact the Linux kernel?

    CVE-2023-5178 may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution.

  • What is the affected software for CVE-2023-5178?

    The affected software includes Linux kernel versions up to 6.6, Linux kernel version 6.6-rc1 to 6.6-rc6, Redhat Kernel version 6.6, Redhat Enterprise Linux version 8.0, and Redhat Enterprise Linux version 9.0.

  • How can I fix CVE-2023-5178?

    To fix CVE-2023-5178, update to Linux kernel version 6.6 or later, or update to a patched version of Redhat Kernel or Redhat Enterprise Linux.

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