Out-of-bounds read in Linux kernel - CVE-2022-50403

Vulnerability identifier: #VU115906

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-50403

CWE-ID: CWE-125

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to an out-of-bounds read error within the fs/ext4/ext4.h. A local user can perform a denial of service (DoS) attack.

Linux kernel
Anolis OS
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel-debug
kernel-doc
kernel-abi-whitelists
python-perf
perf
kernel-tools-libs-devel
kernel-tools-libs
kernel-tools
kernel-headers
kernel-devel
kernel-debug-devel
kernel
bpftool
kernel (Red Hat package)
kernel-rt (Red Hat package)

Install update from vendor's repository.

Linux kernel - update to 5.10.163
kernel-debug - update to 3.10.0-1160.144.1
kernel-doc - update to 3.10.0-1160.144.1
kernel-abi-whitelists - update to 3.10.0-1160.144.1
python-perf - update to 3.10.0-1160.144.1
perf - update to 3.10.0-1160.144.1
kernel-tools-libs-devel - update to 3.10.0-1160.144.1
kernel-tools-libs - update to 3.10.0-1160.144.1
kernel-tools - update to 3.10.0-1160.144.1
kernel-headers - update to 3.10.0-1160.144.1
kernel-devel - update to 3.10.0-1160.144.1
kernel-debug-devel - update to 3.10.0-1160.144.1
kernel - update to 3.10.0-1160.144.1
bpftool - update to 3.10.0-1160.144.1
kernel (Red Hat package) - addressed in versions 3.10.0-1160.144.1.el7, 4.18.0-193.178.1.el8_2, 4.18.0-305.179.1.el8_4, 4.18.0-372.170.1.el8_6, 4.18.0-477.120.1.el8_8, 5.14.0-70.155.1.el9_0
kernel-rt (Red Hat package) - addressed in versions 3.10.0-1160.144.1.rt56.1296.el7, 5.14.0-70.155.1.rt21.227.el9_0

• https://git.kernel.org/stable/c/205ac16628aca9093931fcbdb4bcd00d0eb94132
• https://git.kernel.org/stable/c/3bf678a0f9c017c9ba7c581541dbc8453452a7ae
• https://git.kernel.org/stable/c/4690a4bdcf1470cb161aff1be30bd143b9dffd89
• https://git.kernel.org/stable/c/5da9e607547f73dc7a643f35b0487992fd66910f
• https://git.kernel.org/stable/c/743e9d708743d98464ccbd56e820d87dc6d1d629
• https://git.kernel.org/stable/c/7753d6657873a2523a9989e6c09090cd503bbcda
• https://git.kernel.org/stable/c/d7f93fc6fba8ff017be871be7edf8614a785ccad
• https://git.kernel.org/stable/c/dd5639d36a5e4e42fd0fe05cc0b2ad9ddd3fca9d
• https://git.kernel.org/stable/c/f9cd6980800bbfd11bf94eb5f942049d4d4eaa52
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163

• Out-of-bounds read in Linux kernel ext4
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 9 update for kernel
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 9 update for kernel-rt
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 8 update for kernel
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for kernel-rt
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for kernel
• Anolis OS update for kernel:3.10