Use After Free in Linux Kernel
CVE-2023-5178
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/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which may permit remote code execution or lead to local privilege escalation.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.096 (95.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.091 · newest: 0.096 · change: +0.005
Affected products
- Linux Kernel
- NetApp Active Iq Unified Manager
- NetApp Solidfire \& Hci Management Node
- NetApp Solidfire \& Hci Storage Node
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-513.9.1.rt7.311.el8_9, 0:4.18.0-513.9.1.el8_9
- Red Hat Enterprise Linux 8.2 Advanced Update Support — versions 0:4.18.0-193.128.1.el8_2
- Red Hat Enterprise Linux 8.2 Telecommunications Update Service — versions 0:4.18.0-193.128.1.rt13.179.el8_2, 0:4.18.0-193.128.1.el8_2
- Red Hat Enterprise Linux 8.2 Update Services For SAP Solutions — versions 0:4.18.0-193.128.1.el8_2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2023:7370 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7379 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7418 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7548 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7549 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7551 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7554 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7557 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2023:7559 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2024:0340 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-5178?
- CVE-2023-5178 is a high-severity vulnerability in Linux Kernel, classified under Use After Free. CVSS score: 8.8/10. Published 2023-11-01.
- How severe is CVE-2023-5178?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-5178 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.