CVSS 5.5 · Medium EPSS 0,23%
Kerentanan Use of Uninitialized Resource pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut CISA ADP.
In the Linux kernel, the following vulnerability has been resolved: net: fix uninit-value in caif_seqpkt_sendmsg When nr_segs equal to zero in iovec_from_user, the object msg->msg_iter.iov is uninit stack memory in caif_seqpkt_sendmsg which is defined in ___sys_sendmsg. So we cann't just judge msg->msg_iter.iov->base directlly. We can use nr_segs to judge msg in caif_seqpkt_sendmsg whether has data buffers. ===================================================== BUG: KMSAN: uninit-value in caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x220 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215 caif_seqpkt_sendmsg+0x693/0xf60 net/caif/caif_socket.c:542 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg net/socket.c:672 [inline] ____sys_sendmsg+0x12b6/0x1350 net/socket.c:2343 ___sys_sendmsg net/socket.c:2397 [inline] __sys_sendmmsg+0x808/0xc90 net/socket.c:2480 __compat_sys_sendmmsg net/compat.c:656 [inline]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 2.6.35 hingga sebelum 4.4.277 |
| linux | linux kernel | Versi 4.5 hingga sebelum 4.9.277 |
| linux | linux kernel | Versi 4.10 hingga sebelum 4.14.241 |
| linux | linux kernel | Versi 4.15 hingga sebelum 4.19.199 |
| linux | linux kernel | Versi 4.20 hingga sebelum 5.4.136 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.54 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.13.6 |
| linux | linux kernel | Versi 5.14 rc1 |
| linux | linux kernel | Versi 5.14 rc2 |