Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_lookup: fix catchall element handling with inverted lookups nft_lookup_eval() decides whether a lookup matched (`found`) from the direct set lookup and priv->invert before falling back to the catchall element used by interval sets (e.g. nft_set_rbtree) for the open-ended default range. Since `found` is never recomputed after `ext` is replaced by the catchall lookup, inverted lookups (NFT_LOOKUP_F_INV, "!= @set") can wrongly match or wrongly skip the catchall element, producing the wrong verdict. Fold the catchall lookup into `ext` before computing `found`, matching the order already used by nft_objref_map_eval().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected aaa31047a6d25da0fa101da1ed544e1247949b40 before 65d35cb555f40529a9edc6bf4beaa3bee917f015; affected aaa31047a6d25da0fa101da1ed544e1247949b40 before 0ab8880865f9678eb6174e72c1fc4712e44c745c; affected aaa31047a6d25da0fa101da1ed544e1247949b40 before 238c612357b5a25f03eacf356f95034f8551f218; affected aaa31047a6d25da0fa101da1ed544e1247949b40 before ef0c7d4b04a0e6ad175323c24bc84e11470dd79d; affected aaa31047a6d25da0fa101da1ed544e1247949b40 before e6107a4c74b54cb33e3bce162a63048ae5a6b198 |
| Linux / Linux | affected 5.13; unaffected 0 before 5.13; unaffected 6.6.160 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/65d35cb555f40529a9edc6bf4beaa3bee917f015
- https://git.kernel.org/stable/c/0ab8880865f9678eb6174e72c1fc4712e44c745c
- https://git.kernel.org/stable/c/238c612357b5a25f03eacf356f95034f8551f218
- https://git.kernel.org/stable/c/ef0c7d4b04a0e6ad175323c24bc84e11470dd79d
- https://git.kernel.org/stable/c/e6107a4c74b54cb33e3bce162a63048ae5a6b198
ADP enrichment
No English description supplied.
No references supplied.