Tracker / CVE-2021-33033
CVE-2021-33033
High 7.8
The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd. This leads to writing an arbitrary value.
Affected products and versions
| linux | linux_kernel · 2.6.28 → 4.9.298 |
|---|---|
| linux | linux_kernel · 4.10 → 4.14.226 |
| linux | linux_kernel · 4.15 → 4.19.181 |
| linux | linux_kernel · 4.20 → 5.4.106 |
| linux | linux_kernel · 5.11 → 5.11.7 |
| linux | linux_kernel · 5.5 → 5.10.24 |
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.