CVE-2023-38427 — Out-of-bounds Read in Kernel

CWE-125 — Out-of-bounds ReadCWE-191 — Integer Underflow (Wrap or Wraparound)16 documents9 sources
Severity
9.8CRITICALNVD
OSV8.1OSV7.0
EPSS
0.1%
top 75.03%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Linux Kernel
Timeline
PublishedJul 18
Latest updateApr 16

Description

An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/smb2pdu.c in ksmbd has an integer underflow and out-of-bounds read in deassemble_neg_contexts.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages3 packages

▶NVDlinux/linux_kernel5.15 — 5.15.145+2
▶Debianlinux/linux_kernel< 6.1.37-1+2
▶Ubuntulinux/linux_kernel< 5.15.0-102.112

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

7
OSV
linux-aws, linux-aws-5.15 vulnerabilities↗2024-04-16
▶
OSV
linux, linux-azure, linux-azure-5.15, linux-azure-fde, linux-azure-fde-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gkeop, linux-gkeop-5.15, linux-hwe-5.15, linux-ibm, linux-ibm-5.15, linux-intel↗2024-04-09
▶
OSV
linux-nvidia-6.2 vulnerabilities↗2023-10-31
▶
OSV
linux, linux-aws, linux-aws-6.2, linux-azure, linux-azure-6.2, linux-azure-fde-6.2, linux-gcp, linux-gcp-6.2, linux-hwe-6.2, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-6.2, linux-oracle, linux-↗2023-10-05
▶
OSV
CVE-2023-38427: An issue was discovered in the Linux kernel before 6↗2023-07-18
▶

📋Vendor Advisories

7
Ubuntu
Linux kernel (AWS) vulnerabilities↗2024-04-16
▶
Ubuntu
Linux kernel vulnerabilities↗2024-04-09
▶
Ubuntu
Linux kernel (NVIDIA) vulnerabilities↗2023-10-31
▶
Ubuntu
Linux kernel vulnerabilities↗2023-10-05
▶
Red Hat
kernel: ksmbd: integer underflow and out-of-bounds read in deassemble_neg_contexts↗2023-07-17
▶

💬Community

1
Bugzilla
CVE-2023-38427 kernel: ksmbd: integer underflow and out-of-bounds read in deassemble_neg_contexts↗2023-09-20
▶