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

8.8HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.2 Advanced Update Support
Red Hat Enterprise Linux 8.2 Telecommunications Update Service
Red Hat Enterprise Linux 8.2 Update Services For SAP Solutions
Vendor
CVE Published:
1 November 2023

What is CVE-2023-5178?

A use-after-free vulnerability in the NVMe/TCP subsystem of the Linux kernel has been identified, specifically within the nvmet_tcp_free_crypto function. This vulnerability arises from a logical flaw, allowing an attacker to exploit the use-after-free and double-free conditions. Such an exploit may enable remote code execution or facilitate local privilege escalation, posing significant security risks to systems relying on this kernel functionality.

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Affected Version(s)

Red Hat Enterprise Linux 8 0:4.18.0-513.9.1.rt7.311.el8_9

Red Hat Enterprise Linux 8 0:4.18.0-513.9.1.el8_9

Red Hat Enterprise Linux 8.2 Advanced Update Support 0:4.18.0-193.128.1.el8_2

References

https://access.redhat.com/errata/RHSA-2023:7370
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:7379
vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2023:7418
vendor-advisoryx_refsource_REDHAT

EPSS Score

7% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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