CVSS 7.8 · High EPSS 0,48%
Kerentanan Out-of-bounds Write pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: net/tls: Fix flipped sign in tls_err_abort() calls sk->sk_err appears to expect a positive value, a convention that ktls doesn't always follow and that leads to memory corruption in other code. For instance, [kworker] tls_encrypt_done(..., err=<negative error from crypto request>) tls_err_abort(.., err) sk->sk_err = err; [task] splice_from_pipe_feed ... tls_sw_do_sendpage if (sk->sk_err) { ret = -sk->sk_err; // ret is positive splice_from_pipe_feed (continued) ret = actor(...) // ret is still positive and interpreted as bytes // written, resulting in underflow of buf->len and // sd->len, leading to huge buf->offset and bogus // addresses computed in later calls to actor() Fix all tls_err_abort() callers to pass a negative error code consistently and centralize the error-prone sign flip there, throwing in a warning to catch future misuse and uninlining the function so it really does only warn once.
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 4.17 hingga sebelum 5.4.157 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.77 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.14.16 |
| linux | linux kernel | Versi 5.15 rc1 |
| linux | linux kernel | Versi 5.15 rc2 |
| linux | linux kernel | Versi 5.15 rc3 |
| linux | linux kernel | Versi 5.15 rc4 |
| linux | linux kernel | Versi 5.15 rc5 |
| linux | linux kernel | Versi 5.15 rc6 |
| linux | linux kernel | Versi 5.15 rc7 |