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。

  - scsiiscsi_tcp访问 shost ipaddress 时在注销期间修复 UAF 来自 Ding Hui 的缺陷报告和分析。在 iSCSI 会话注销期间如果有另一任务访问 shost ipaddress 属性我们可获得如下的 KASAN UAF 报告[ 276.942144] BUG: KASAN_raw_spin_lock_bh+0x78/0xe0 中存在释放后使用 [276.942535] 写入大小4 at addr ffff8881053b45b8 任务 cat/4088 [ 276.943511] CPU2 PID4088 Comm
    cat 受感染GE 6.1.0-rc8+ #3 [ 276.943997] 硬件名称VMware, Inc. VMware Virtual Platform/440BX Desktop Reference PlatformBIOS 6.00 11/12/2020 [ 276.944470] 调用跟踪[ 276.944943] <TASK> [276.945397] dump_stack_lvl+0x34/0x48 [ 276.945887] print_address_description.constprop.0+0x86/0x1e7 [276.946421] print_report+0x36/0x4f [ 276.947358] kasan_report+0xad/0x130 [ 276.948234] kasan_check_range+0x35/ 0x1c0 [ 276.948674] _raw_spin_lock_bh+0x78/0xe0 [ 276.949989] iscsi_sw_tcp_host_get_param+0xad/0x2e0 [iscsi_tcp] [ 276.951765] show_host_param_ISCSI_HOST_PARAM_IPADDRESS+0xe9/0x130 [scsi_transport_iscsi] [ 276.952185] dev_attr_show+0x3f/0x80 [ 276.953005] sysfs_kf_seq_show+0x1fb /0x3e0 [ 276.953401] seq_read_iter+0x402/0x1020 [ 276.954260] vfs_read+0x532/0x7b0 [ 276.955113] ksys_read+0xed/0x1c0 [276.955952] do_syscall_64+0x38/0x90 [ 276.956347] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 276.956769] RIP: 0033:0x7f5d3a679222 [ 276.957161] Code: c0 e9 b2 fe ff ff 50 48 8d 3d 32 c0 0b 00 e8 a5 fe 01 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 85 c000 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24 [ 276.958009] RSP: 002b:00007ffc864d16a8 EFLAGS: 00000246 ORIG_RAX
    0000000000000000 [ 276.958431] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007f5d3a679222 [276.958857] RDX: 0000000000020000 RSI: 00007f5d3a4fe000 [00BP:fe000 RDI: 0000]00000 276.959281[00000 ]
    00007f5d3a4fe000 R0800000000ffffffff R090000000000000000 [ 276.959682] R100000000000000022 R11
    0000000000000246 R120000000000020000 [ 276.960126] R130000000000000003 R140000000000000000 R15
    0000557a26dada58 [ 276.960536] </TASK> [ 276.961357] 按任务 2209 分配[ 276.961756] kasan_save_stack+0x1e/0x40 [ 276.962170] kasan_set_track+0x21/0x30 [ 276.962557] __kasan_kmalloc+0x7e/0x90 [ 276.962923] __kmalloc+0x5b /0x140 [ 276.963308] iscsi_alloc_session+0x28/0x840 [scsi_transport_iscsi] [276.963712] iscsi_session_setup+0xda/0xba0 [libiscsi] [ 276.964078] iscsi_sw_tcp_session_create+0x1fd/0x330 [iscsi_tcp] [ 276.964431] iscsi_if_create_session.isra.050+0x140 0x260 [scsi_transport_iscsi] [ 276.964793] iscsi_if_recv_msg+0xc5a/0x2660 [scsi_transport_iscsi] [ 276.965153] iscsi_if_rx+0x198/0x4b0 [scsi_transport_iscsi] [ 276.965546] netlink_unicast+0x4d5/0x7b0 [ 276.965905]+mscsi 276.966236] netlink_send sock_sendmsg+0xe5/0x120 [ 276.966576]____sys_sendmsg+0x5fe/0x860 [ 276.966923]
    ___sys_sendmsg+0xe0/0x170 [ 276.967300] __sys_sendmsg+0xc8/0x170 [ 276.967666] do_syscall_64+0x38/0x90 [276.968028] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 276.968773] 由任务 2209 释放[ 276.969111] kasan_save_stack+0x401e/ [ 276.969449] kasan_set_track+0x21/0x30 [ 276.969789] kasan_save_free_info+0x2a/0x50 [ 276.970146] __kasan_slab_free+0x106/0x190 [ 276.970470]
    __kmem_cache_free+0x133/0x270 [ 276.970816] device_release+0x98/0x210 [ 276.971145] kobject_cleanup+0x101/0x360 [ 276.971462] iscsi_session_teardown+0x3fb/0x530 [libiscsi] [ 276.971775] iscsi_sw_tcp_session_destroy+0xd8/0x130 [iscsi_tcp] [iscsi_sw_tcp_session_destroy+0xd8/0x130 276.972143] iscsi_if_recv_msg+0x1bf1/0x2660 [scsi_transport_iscsi] [ 276.972485] iscsi_if_rx+0x198/0x4b0 [scsi_transport_iscsi] [ 276.972808] netlink_unicast+0x4d5/0x7b0 [ 276.973544276.973201netlink_sendmsg+0x78d/0xc30 [[] ] 276.973864son ] ]____sys_sendmsg+0x5fe/0x860 [ 276.974248] ___sys_ ---truncated--- (CVE-2023-52975)

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-2023-52975

high Nessus 插件 ID 248046

版本 1.8