VDB

CISA-2023-6121

CISA-2023-6121 PUBLISHED CVSS 4.3 MEDIUM

Reported by redhat · Published November 16, 2023

An out-of-bounds read vulnerability was found in the NVMe-oF/TCP subsystem in the Linux kernel. This issue may allow a remote attacker to send a crafted TCP packet, triggering a heap-based buffer overflow that results in kmalloc data being printed and potentially leaked to the kernel ring buffer (dmesg).

Risk Scores

CVSS 3.1
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Products

VendorProductVersions
Red HatRed Hat Enterprise Linux 80:4.18.0-553.rt7.342.el8_10
Red HatRed Hat Enterprise Linux 80:4.18.0-553.el8_10
Red HatRed Hat Enterprise Linux 90:5.14.0-427.13.1.el9_4
Red HatRed Hat Enterprise Linux 90:5.14.0-427.13.1.el9_4
Red HatRed Hat Enterprise Linux 6
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat Enterprise Linux 7
Red HatRed Hat Enterprise Linux 9
Red HatRed Hat Enterprise Linux 6
Red HatRed Hat Enterprise Linux 90:5.14.0-427.13.1.el9_4, *, 0:5.14.0-427.13.1.el9_4
Red HatRed Hat Enterprise Linux 8*, 0:4.18.0-553.rt7.342.el8_10
Red HatRed Hat Enterprise Linux 80:4.18.0-553.el8_10, 0:4.18.0-553.el8_10
Red HatRed Hat Enterprise Linux 7

Timeline

  • Nov 16, 2023 CVE Published
  • Nov 6, 2025 CVE Updated
  • Apr 26, 2026 Distribution Patch
  • Apr 26, 2026 Distribution Patch
  • Apr 26, 2026 Distribution Patch
  • Apr 26, 2026 Security Advisory
  • Apr 26, 2026 Security Advisory
  • Apr 26, 2026 Security Advisory

References

Open in Interactive Console →
$ Console Community · 100/wk Open console ›