CVE-2018-8822Improper Restriction of Operations within the Bounds of a Memory Buffer in Kernel

Severity
7.8HIGHNVD
OSV8.8OSV5.5OSV4.7
EPSS
0.1%
top 83.26%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedMar 20
Latest updateMay 14

Description

Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages4 packages

NVDlinux/linux_kernel2.6.123.2.102+8
Debianlinux/linux_kernel< 4.15.17-1+3
Ubuntulinux/linux_kernel< 3.13.0-149.199+1
debiandebian/linux< linux 4.15.17-1 (bookworm)

Also affects: Debian Linux 7.0, 8.0, 9.0, Ubuntu Linux 12.04, 14.04, 16.04, 17.10

Patches

🔴Vulnerability Details

7
GHSA
GHSA-h62p-crx4-36fq: Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel2022-05-14
OSV
linux, linux-aws, linux-kvm, vulnerabilities2018-05-22
OSV
linux-hwe, linux-azure, linux-gcp, linux-oem vulnerabilities2018-05-22
OSV
linux-lts-xenial, linux-aws vulnerabilities2018-05-22
OSV
linux-raspi2, linux-snapdragon vulnerabilities2018-05-22

📋Vendor Advisories

10
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities2018-05-22
Ubuntu
Linux kernel vulnerabilities2018-05-22
Ubuntu
Linux kernel vulnerabilities2018-05-22
Ubuntu
Linux kernel (HWE) vulnerabilities2018-05-22
Ubuntu
Linux kernel (Raspberry Pi 2, Snapdragon) vulnerabilities2018-05-22

💬Community

2
Bugzilla
CVE-2018-8822 kernel: Memory corruption in ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c [fedora-all]2018-03-20
Bugzilla
CVE-2018-8822 kernel: Memory corruption in ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c2018-03-20