Tracker / CVE-2021-4090
CVE-2021-4090
High 7.1
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · … → 5.16 |
| netapp | h300e_firmware |
| netapp | h300s_firmware |
| netapp | h410c_firmware |
| netapp | h410s_firmware |
| netapp | h500e_firmware |
| netapp | h500s_firmware |
| netapp | h700e_firmware |
| netapp | h700s_firmware |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.