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。

  - powerpc/64s修复程序检查中断紧急堆栈路径紧急堆栈路径跳入 3:
    在完成后正常路径会阻止它在 __GEN_COMMON_BODY 宏内部的标签而不是跳过它。谢天谢地，这是使用现有堆栈指针构建新中断框架的正确位置，因此，通过在顶部添加看起来很奇怪的 700 陷阱框架，一切基本上都可以正常工作（该框架具有错误的 ->nip，因此解码缺陷消息中的一个。通过在跳过重要宏时避免使用数字标签来修复此问题。之前LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA PowerNV Modules 中链接的 CPU: 0 PID: 88 Comm: sh 未受感染 5.15.0-rc2-00034-ge057cdade6e5 #2637 NIP
    7265677368657265 LRc00000000006c0c8 CTRc0000000000097f0 REGSc0000000fffb3a50 TRAP: 0700 未受感染 MSR: 9000000000021031<SF,HV,ME,IR,DR,LE> CR: 00000700 XER: 20040000 CFAR: c0000000000098b0 IRQMASK: 0 GPR00: c00000000006c964 c0000000fffb3cf0 c000000001513800 0000000000000000 GPR04: 0000000048ab0778 0000000042000000 0000000000000000 0000000000001299 GPR08: 000001e447c718ec 0000000022424282 0000000000002710 c00000000006bee8 GPR12: 9000000000009033 c0000000016b0000 00000000000000b0 0000000000000001 GPR16: 0000000000000000 0000000000000002 0000000000000000 0000000000000ff8 GPR20:
    0000000000001fff 0000000000000007 0000000000000080 00007fff89d90158 GPR24: 0000000002000000 0000000002000000 0000000000000255 0000000000000300 GPR28: c000000001270000 0000000042000000 0000000048ab0778 c000000080647e80 NIP [7265677368657265] 0x7265677368657265 LR [c00000000006c0c8]
    ___do_page_fault+0x3f8/0xb10 调用跟踪[c0000000fffb3cf0] [c00000000000bdac] soft_nmi_common+0x13c/0x1d0 (不可靠) --- 中断700 at decrementer_common_virt+0xb8/0x230NIP: c0000000000LR800
    c00000000006c0c8 CTRc0000000000097f0 REGSc0000000fffb3d60 TRAP: 0700 未受感染 MSR: 9000000000021031<SF,HV,ME,IR,DR,LE> CR: 22424282 XER: 20040000 CFAR: c0000000000098b0 IRQMASK: 0 GPR00: c00000000006c964 0000000000002400 c000000001513800 0000000000000000 GPR04: 0000000048ab0778 0000000042000000 0000000000000000 0000000000001299 GPR08: 000001e447c718ec 0000000022424282 0000000000002710 c00000000006bee8 GPR12: 9000000000009033 c0000000016b0000 00000000000000b0 0000000000000001 GPR16:
    0000000000000000 0000000000000002 0000000000000000 0000000000000ff8 GPR20: 0000000000001fff 0000000000000007 0000000000000080 00007fff89d90158 GPR24: 0000000002000000 0000000002000000 0000000000000255 0000000000000300 GPR28: c000000001270000 0000000042000000 0000000048ab0778 c000000080647e80 NIP [c0000000000098b8] decrementer_common_virt+0xb8/0x230 LR [c00000000006c0c8]
    ___do_page_fault+0x3f8/0xb10 --- 中断700 指令转储XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX ---[ 结束跟踪 6d28218e0cc3c949 ]--- 之后------- -----[ 在此处剪切 ]------------ arch/powerpc/kernel/exceptions-64s.S:491! 的内核缺陷Oops内核模式中发生异常sig5 [#1] LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA 中链接的 PowerNV Modules: CPU: 0 PID: 88 Comm: login 未受感染 5.15.0-rc2-00034- ge057cdade6e5-dirty #2638 NIPc0000000000098b8 LRc00000000006bf04 CTR
    c0000000000097f0 REGSc0000000fffb3d60 TRAP: 0700 未受感染 MSR: 9000000000021031<SF,HV,ME,IR,DR,LE> CR: 24482227 XER: 00040000 CFAR: c0000000000098b0 IRQMASK: 0 GPR00: c00000000006bf04 0000000000002400 c000000001513800 c000000001271868 GPR04: 00000000100f0d29 0000000042000000 0000000000000007 0000000000000009 GPR08: 00000000100f0d29 0000000024482227 0000000000002710 c000000000181b3c GPR12:
    9000000000009033 c0000000016b0000 00000000100f0d29 c000000005b22f00 GPR16: 00000000ffff0000 0000000000000001 0000000000000009 00000000100eed90 GPR20: 00000000100eed90 00000 ---truncated--- (CVE-2021-47428)

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-2021-47428

medium Nessus 插件 ID 224323

版本 1.16