CVE编号
CVE-2019-12818利用情况
暂无补丁情况
官方补丁披露时间
2019-06-14漏洞描述
在4.20.15之前在Linux内核中发现了一个问题。 net / nfc / llcp_commands.c中的nfc_llcp_build_tlv函数可能返回NULL。如果调用者没有检查这个，它将触发NULL指针解除引用。这将导致拒绝服务。这会影响net / nfc / llcp_core.c中的nfc_llcp_build_gb。 解决建议
厂商已发布漏洞修复程序，请及时关注更新：https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=58bdd544e2933a21a51eecf17c3f5f94038261b5
参考链接 |
|
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00039.html | |
| http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00040.html | |
| http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00048.html | |
| http://packetstormsecurity.com/files/154245/Kernel-Live-Patch-Security-Notice... | |
| http://www.securityfocus.com/bid/108776 | |
| https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=58... | |
| https://github.com/torvalds/linux/commit/58bdd544e2933a21a51eecf17c3f5f94038261b5 | |
| https://security.netapp.com/advisory/ntap-20190710-0002/ | |
| https://support.f5.com/csp/article/K91444306 | |
| https://usn.ubuntu.com/4094-1/ | |
| https://usn.ubuntu.com/4118-1/ | |
| https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.15 |
受影响软件情况
| # | 类型 | 厂商 | 产品 | 版本 | 影响面 | ||||
| 1 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 运行在以下环境 | |||||||||
| 系统 | debian_8 | linux | * |
Up to (excluding) 3.16.57-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | linux | * |
Up to (excluding) 4.9.168-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * |
Up to (excluding) 4.20.15 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.0 | linux | * |
Up to (excluding) 4.12.14-lp150.12.64.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | linux | * |
Up to (excluding) 4.12.14-lp151.28.7.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_42.3 | linux | * |
Up to (excluding) 4.4.180-102.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | sles_12 | kernel-default-extra | * |
Up to (excluding) 4.12.14-120 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | sles_12_SP3 | linux | * |
Up to (excluding) 1-4.3.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP3 | linux | * |
Up to (excluding) 1-4.3.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | linux | * |
Up to (excluding) 4.15.0-1047.49~16.04.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04_lts | linux | * |
Up to (excluding) 4.4.0-146.172 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | linux | * |
Up to (excluding) 4.15.0-1042.42 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04_lts | linux | * |
Up to (excluding) 4.15.0-58.64 |
|||||
- 攻击路径 远程
- 攻击复杂度 复杂
- 权限要求 无需权限
- 影响范围 有限影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 无影响
- 数据完整性 无影响
- 服务器危害 无影响
- 全网数量 100
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