CVSS 7.8 · High EPSS 0,58%
Kerentanan Integer Overflow or Wraparound pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut CNA.
In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hint does not account for the runtime header offset added by typed keys. This can leave part of the write region un-COW'd. Fix by moving skb_ensure_writable() inside the per-key loop where the actual write offset is known, and add overflow checking on the offset arithmetic. For negative offsets (e.g. Ethernet header edits at ingress), use skb_cow() to COW the headroom instead. Guard offset_valid() against INT_MIN, where negation is undefined.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 4.19.244 hingga sebelum 4.20 |
| linux | linux kernel | Versi 5.4.195 hingga sebelum 5.5 |
| linux | linux kernel | Versi 5.10.117 hingga sebelum 5.11 |
| linux | linux kernel | Versi 5.15.41 hingga sebelum 5.16 |
| linux | linux kernel | Versi 5.17.9 hingga sebelum 5.18 |
| linux | linux kernel | Versi 5.18.1 hingga sebelum 6.12.94 |
| linux | linux kernel | Versi 6.13 hingga sebelum 6.18.36 |
| linux | linux kernel | Versi 6.19 hingga sebelum 7.0.13 |
| linux | linux kernel | Versi 5.18 |
| linux | linux kernel | Versi 5.18 rc7 |
| linux | linux kernel | Versi 7.1 rc1 |
| linux | linux kernel | Versi 7.1 rc2 |
| linux | linux kernel | Versi 7.1 rc3 |
| linux | linux kernel | Versi 7.1 rc4 |
| linux | linux kernel | Versi 7.1 rc5 |
| linux | linux kernel | Versi 7.1 rc6 |