CVE编号
CVE-2020-29660利用情况
暂无补丁情况
官方补丁披露时间
2020-12-10漏洞描述
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 在5.9.13以及之前版本的Linux kernel的tty子系统中发现了一个锁定不一致的问题。drivers/tty/tty_io.c和drivers/tty/tty_jobctrl.c可能允许对TIOCGSID（即CID-c8bcd9c5be24）的释放后重读取攻击。解决建议
建议您更新当前系统或软件至最新版，完成漏洞的修复。
参考链接 |
|
|---|---|
| http://packetstormsecurity.com/files/164950/Kernel-Live-Patch-Security-Notice... | |
| http://www.openwall.com/lists/oss-security/2020/12/10/1 | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id... | |
| https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html | |
| https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://security.netapp.com/advisory/ntap-20210122-0001/ | |
| https://www.debian.org/security/2021/dsa-4843 |
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 | alibaba_cloud_linux_2.1903 | linux | * |
Up to (excluding) 4.19.91-23.al7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon linux_2 | linux | * |
Up to (excluding) 4.14.214-160.339.amzn2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon linux_AMI | linux | * |
Up to (excluding) 4.14.214-118.339.amzn1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | linux | * |
Up to (excluding) 4.14.214-160.339.amzn2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | linux | * |
Up to (excluding) 4.14.214-118.339.amzn1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | linux | * |
Up to (excluding) 4.18.0-348.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | linux | * |
Up to (excluding) 4.19.171-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | linux | * |
Up to (excluding) 5.9.11-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | linux | * |
Up to (excluding) 4.9.258-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | linux | * |
Up to (excluding) 5.9.11-1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedoraproject | fedora | 32 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedoraproject | fedora | 33 | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | linux | * |
Up to (excluding) 5.9.14-100.fc32 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_33 | linux | * |
Up to (excluding) 5.9.14-200.fc33 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | linux | linux_kernel | * |
Up to (including) 5.9.13 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | linux | * |
Up to (excluding) 4.12.14-lp151.28.91.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.2 | linux | * |
Up to (excluding) 5.3.18-lp152.60.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle linux_6 | linux | * |
Up to (excluding) 4.1.12-124.47.3.el6uek |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle linux_7 | linux | * |
Up to (excluding) 4.14.35-2025.405.3.el7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle linux_8 | linux | * |
Up to (excluding) 5.4.17-2036.103.3.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_6 | linux | * |
Up to (excluding) 4.1.12-124.47.3.el7uek |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | linux | * |
Up to (excluding) 4.14.35-2025.405.3.el7 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | linux | * |
Up to (excluding) 5.4.17-2036.103.3.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | linux | * |
Up to (excluding) 4.18.0-348.el8 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | sles_12_SP5 | linux | * |
Up to (excluding) 4.12.14-16.41.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | linux | * |
Up to (excluding) 4.12.14-16.41.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04 | linux | * |
Up to (excluding) 4.4.0-203.235~14.04.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_14.04_lts | linux-aws | * |
Up to (excluding) 4.4.0-1086.90 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | linux | * |
Up to (excluding) 4.15.0-136.140~16.04.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04_lts | linux | * |
Up to (excluding) 4.4.0-203.235 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | linux | * |
Up to (excluding) 5.4.0-1029.32~18.04.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04_lts | linux | * |
Up to (excluding) 4.15.0-136.140 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | linux | * |
Up to (excluding) 5.4.0-1037.40 |
|||||
- 攻击路径 本地
- 攻击复杂度 困难
- 权限要求 普通权限
- 影响范围 全局影响
- EXP成熟度 未验证
- 补丁情况 官方补丁
- 数据保密性 数据泄露
- 数据完整性 传输被破坏
- 服务器危害 DoS
- 全网数量 N/A
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