Tracker / CVE-2023-3777
CVE-2023-3777
High 7.8
A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8.
Affected products and versions
| canonical | ubuntu_linux |
|---|---|
| debian | debian_linux |
| linux | linux_kernel · 5.11 → 5.15.123 |
| linux | linux_kernel · 5.16 → 6.1.42 |
| linux | linux_kernel · 5.9 → 5.10.188 |
| linux | linux_kernel · 6.2 → 6.4.7 |
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.