Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - wifimt7601u修复整数下溢 修复会导致“mt7601u_rx_skb_from_seg()”中空指针取消引用的整数下溢。URB 数据包中的变量“dma_len”可能被操纵从而触发“mt7601u_rx_process_seg()”中“seg_len”的整数下溢。此下溢随后导致绕过“mt7601u_rx_skb_from_seg()”中的“bad_frame”检查最终导致取消引用指针“p”即空指针。确保“dma_len”大于“min_seg_len”。此问题由 syzkaller 的修改版本发现。KASANnull-ptr-deref in 范围 [0x0000000000000008-0x000000000000000f] CPU0 PID12 Comm: ksoftirqd/0 Tainted: GWO 5.14.0+ #139 硬件名称QEMU Standard PC (i440FX + PIIX, 1996)BIOS 相关1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org04/01/2014 RIP0010:skb_add_rx_frag+0x143/0x370 代码e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 48d 74 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 85cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00 RSP: 0018: 0ffc0ffc0ffc0ffc0ffc0 00010202 RAX: dffffc0000000000 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 模块中链接的 88XXau(O) 88x2bu(O) ---[ end trace 57f34f93b4da0f9b ]--- RIP0010:skb_add_rx_frag+0x143/0x370 Codee2 07 83 cdc 03 382 03 382 03 382 03 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 cd 01 48 00 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 CR2:000000004035af40 CR3:
    00000001157f2000 CR4: 0000000000750ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 (CVE-2023-53679)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

Linux Distros 未修补的漏洞：CVE-2023-53679

medium Nessus 插件 ID 270145

版本 1.18