cbcvebase.
CVE-2023-52603
published 2024-03-06

CVE-2023-52603: In the Linux kernel, the following vulnerability has been resolved: UBSAN: array-index-out-of-bounds in dtSplitRoot Syzkaller reported the following issue…

PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.29%
21.2th percentile
In the Linux kernel, the following vulnerability has been resolved: UBSAN: array-index-out-of-bounds in dtSplitRoot Syzkaller reported the following issue: oop0: detected capacity change from 0 to 32768 UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:1971:9 index -2 is out of range for type 'struct dtslot [128]' CPU: 0 PID: 3613 Comm: syz-executor270 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xdb/0x130 lib/ubsan.c:283 dtSplitRoot+0x8d8/0x1900 fs/jfs/jfs_dtree.c:1971 dtSplitUp fs/jfs/jfs_dtree.c:985 [inline] dtInsert+0x1189/0x6b80 fs/jfs/jfs_dtree.c:863 jfs_mkdir+0x757/0xb00 fs/jfs/namei.c:270 vfs_mkdir+0x3b3/0x590 fs/namei.c:4013 do_mkdirat+0x279/0x550 fs/namei.c:4038 __do_sys_mkdirat fs/namei.c:4053 [inline] __se_sys_mkdirat fs/namei.c:4051 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4051 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fcdc0113fd9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeb8bc67d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fcdc0113fd9 RDX: 0000000000000000 RSI: 0000000020000340 RDI: 0000000000000003 RBP: 00007fcdc00d37a0 R08: 0000000000000000 R09: 00007fcdc00d37a0 R10: 00005555559a72c0 R11: 0000000000000246 R12: 00000000f8008000 R13: 0000000000000000 R14: 00083878000000f8 R15: 0000000000000000 The issue is caused when the value of fsi becomes less than -1. The check to break the loop when fsi value becomes -1 is present but syzbot was abl

Affected

25 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.82-1 (bookworm)linux 6.1.82-1 (bookworm)
linuxlinux
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e30b52a2ea3d1e0aaee68096957cf90a2f4ec5afe30b52a2ea3d1e0aaee68096957cf90a2f4ec5af
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fd3486a893778770557649fe28afa5e463d4ed07fd3486a893778770557649fe28afa5e463d4ed07
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7aa33854477d9c346f5560a1a1fcb3fe7783e2a87aa33854477d9c346f5560a1a1fcb3fe7783e2a8
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e4ce01c25ccbea02a09a5291c21749b1fc358e39e4ce01c25ccbea02a09a5291c21749b1fc358e39
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e4cbc857d75d4e22a1f75446e7480b1f305d8d60e4cbc857d75d4e22a1f75446e7480b1f305d8d60
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < edff092a59260bf0b0a2eba219cb3da6372c2f9fedff092a59260bf0b0a2eba219cb3da6372c2f9f
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6e2902ecc77e9760a9fc447f56d598383e2372d26e2902ecc77e9760a9fc447f56d598383e2372d2
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 27e56f59bab5ddafbcfe69ad7a4a6ea1279c1b1627e56f59bab5ddafbcfe69ad7a4a6ea1279c1b16
linuxlinux_kernel< 4.19.3074.19.307
linuxlinux_kernel>= 0 < 5.10.216-15.10.216-1
linuxlinux_kernel>= 0 < 6.1.82-16.1.82-1
linuxlinux_kernel>= 0 < 6.7.7-16.7.7-1
linuxlinux_kernel>= 0 < 6.7.7-16.7.7-1
linuxlinux_kernel>= 0 < 5.4.0-177.1975.4.0-177.197
linuxlinux_kernel>= 0 < 5.15.0-105.1155.15.0-105.115
linuxlinux_kernel>= 0 < 4.4.0-253.2874.4.0-253.287
linuxlinux_kernel>= 0 < 4.15.0-224.2364.15.0-224.236
linuxlinux_kernel>= 4.20 < 5.4.2695.4.269
linuxlinux_kernel>= 5.11 < 5.15.1495.15.149
linuxlinux_kernel>= 5.16 < 6.1.776.1.77
linuxlinux_kernel>= 5.5 < 5.10.2105.10.210
linuxlinux_kernel>= 6.2 < 6.6.166.6.16
linuxlinux_kernel>= 6.7 < 6.7.46.7.4

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.