Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - wifimt7601u修正整數反向溢位。修正會導致 ‘mt7601u_rx_skb_from_seg()’ 中的 null 指標解除參照的整數反向溢位。可以操控 URB 封包中的變數「dma_len」進而在「mt7601u_rx_process_seg()」中觸發「seg_len」的整數反向溢位。此反向溢位後續會造成繞過「mt7601u_rx_skb_from_seg()」中的「bad_frame」檢查最終導致指標「p」解除參照這是 null 指標。確認「dma_len」大於「min_seg_len」。此問題由 syzkaller 的修改版本發現。KASAN範圍 [0x0000000000000008-0x000000000000000f] CPU 0 PID 12 通訊 ksoftirqd/0 受污染 GWO 5.14.0+ #139 硬體名稱 QEMU 標準 PC (i440FX + PIIX, 1996)BIOS 版本1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org04/01/2014 RIP: 0010:skb_add_rx_frag+0x143/0x370 程式碼e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 74d 89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00 RSP00cfLA90000cLAGS0000ff ff 00010202 RAXdffffc0000000000 RBX
    ffff888115520dc0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8 RBP: 0000000000000000 R08: 0000000000000e09 R09: 0000000000000010 R10: ffff888111843017 R11:
     R12ffffed1022308602  : 0000000000000000 R13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008 FS: 0000000000000000(0000) GS:ffff88811a800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000004035af40 CR3: 00000001157f2000 CR4: 0000000000750ef0 DR0
    0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: mt7601u_rx_tasklet+0xc73/0x1270 ? mt7601u_submit_rx_buf.isra.0+0x510/0x510 tasklet_action_common.isra.0+0x79/0x2f0 tasklet_action_common.isra.0+0x206/0x2f0 __do_softirq+0x1b5/0x880 ? tasklet_unlock+0x30/0x30 run_ksoftirqd+0x26/0x50 smpboot_thread_fn+0x34f/0x7d0 smpboot_register_percpu_thread+0x370/0x370 kthread+0x3a1/0x480 set_kthread_struct+0x120/0x120 ret_from_fork+0x1f/0x30 模組連結於88XXau(O) 88x2bu(O) ---[ end trace 57f34f93b4da0f9b ]--- RIP0010:skb_add_rx_frag+0x143/0x370 程式碼e2 07 83 c2 038 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 08 44 89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 48 8b 8 08 a8 01 0f 85 3d 01 00 00 RSP: 0018:ffffc900000cfc90 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff888115520dc0 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8 RBP: 0000000000000000 R08: 0000000000000e09 R09:
     R100000000000000010  : ffff888111843017 R11: ffffed1022308602 R12: 0000000000000000 R13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008 FS: 0000000000000000(0000) GS:ffff88811a800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0 0000000080050033 CR2000000004035af40 CR3
    00000001157f2000 CR4: 0000000000750ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 (CVE-2023-53679)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

偵測

Linux Distros 未修補的弱點：CVE-2023-53679

medium Nessus Plugin ID 270145

版本 1.5