CVE-2021-4090CWE-787

CVE-2021-4090

High · published February 18, 2022

CVSS v3.1
7.1
EPSS
0%
Percentile
25.8
In the wild
Unconfirmed
What it is

An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw, a local attacker with user privilege may gain access to out-of-bounds memory, leading to a system integrity and confidentiality threat.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00336 · 25.8th percentile
Weakness
CWE-787 · Out-of-bounds Write
Published
2022-02-18T23:15Z
Affected products (11)
ProductVersionsFixed in
linux/linux_kernel< 5.165.16
linux/linux_kernelall versions—
linux/linux_kernelall versions—
netapp/h300s_firmwareall versions—
netapp/h500s_firmwareall versions—
netapp/h700s_firmwareall versions—
netapp/h300e_firmwareall versions—
netapp/h500e_firmwareall versions—
netapp/h700e_firmwareall versions—
netapp/h410s_firmwareall versions—
netapp/h410c_firmwareall versions—
References (8)
EPSS history
Timeline
  • 18 FEB 00:00Z
    An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel
    cvelistv5