CVE-2022-47940 — Out-of-bounds Read in Kernel

CWE-125 — Out-of-bounds Read14 documents7 sources
Severity
8.1HIGHNVD
OSV5.5
EPSS
1.5%
top 18.70%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxMsrc CBL Mariner 2.0 ARM+1 more
Timeline
PublishedDec 23
Latest updateFeb 15

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.18 before 5.18.18. fs/ksmbd/smb2pdu.c lacks length validation in the non-padding case in smb2_write.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 2.8 | Impact: 5.2

Affected Packages6 packages

▶NVDlinux/linux_kernel5.15 — 5.15.145+1
▶Debianlinux/linux_kernel< 5.19.6-1+2
▶Ubuntulinux/linux_kernel< 5.15.0-60.66
▶debiandebian/linux< linux 5.19.6-1 (bookworm)

Patches

Patch: cdn.kernel.org ↗Patch: git.kernel.org ↗Patch: github.com ↗

🔴Vulnerability Details

6
OSV
linux-gke-5.15 vulnerabilities↗2023-02-15
▶
OSV
linux-aws, linux-aws-5.15, linux-azure-fde, linux-gcp, linux-gcp-5.15, linux-intel-iotg vulnerabilities↗2023-02-15
▶
OSV
linux, linux-azure, linux-azure-5.15, linux-gkeop, linux-hwe-5.15, linux-ibm, linux-kvm, linux-lowlatency, linux-lowlatency-hwe-5.15, linux-oracle, linux-oracle-5.15, linux-raspi vulnerabilities↗2023-02-09
▶
OSV
linux-gke vulnerabilities↗2023-02-09
▶
GHSA
GHSA-7q73-76jf-54wg: An issue was discovered in ksmbd in the Linux kernel before 5↗2022-12-23
▶

📋Vendor Advisories

7
Ubuntu
Linux kernel vulnerabilities↗2023-02-15
▶
Ubuntu
Linux kernel (GKE) vulnerabilities↗2023-02-15
▶
Ubuntu
Linux kernel vulnerabilities↗2023-02-09
▶
Ubuntu
Linux kernel (GKE) vulnerabilities↗2023-02-09
▶
Red Hat
kernel: smb2_write() fails to validate user supplied data which can result in out-of-bounds read↗2022-12-22
▶