CVE-2023-38431 — Out-of-bounds Read in Kernel

CWE-125 — Out-of-bounds Read14 documents7 sources
Severity
9.1CRITICALNVD
OSV8.1OSV7.0
EPSS
0.1%
top 77.43%
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/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes, via pdu_size in ksmbd_conn_handler_loop, leading to an out-of-bounds read.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HExploitability: 3.9 | Impact: 5.2

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
▶
GHSA
GHSA-229r-cp46-m292: An issue was discovered in the Linux kernel before 6↗2023-07-18
▶

📋Vendor Advisories

6
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
▶
Microsoft
An issue was discovered in the Linux kernel before 6.3.8. fs/smb/server/connection.c in ksmbd does not validate the relationship between the NetBIOS header's length field and the SMB header sizes via ↗2023-07-11
▶