Tracker / CVE-2023-53304
CVE-2023-53304
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix overlap expiration walk The lazy gc on insert that should remove timed-out entries fails to release the other half of the interval, if any. Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0 in nftables.git and kmemleak enabled kernel. Second bug is the use of rbe_prev vs. prev pointer. If rbe_prev() returns NULL after at least one iteration, rbe_prev points to element that is not an end interval, hence it should not be removed. Lastly, check the genmask of the end interval if this is active in the current generation.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 5.10.166 → 5.10.190 |
| linux | linux_kernel · 5.15.91 → 5.15.124 |
| linux | linux_kernel · 6.1.9 → 6.1.43 |
| linux | linux_kernel · 6.2.1 → 6.4.8 |
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.