漏洞信息详情

Linux kernel 缓冲区错误漏洞

• CNNVD编号：CNNVD-202207-1508
• 危害等级： 中危
  
• CVE编号： CVE-2021-33656
• 漏洞类型： 缓冲区错误
• 发布时间： 2022-07-18
• 威胁类型： 本地
• 更新时间： 2022-10-08
• 厂        商：
• 漏洞来源：

漏洞简介

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。

Linux kernel openEuler-22.03-LTS存在安全漏洞，该漏洞源于通过ioctl cmd PIO_FONT设置带有恶意数据的字体时，内核会越界写入内存。

漏洞公告

目前厂商已发布升级补丁以修复漏洞，补丁获取链接：

https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch

参考网址

来源:MISC

链接:https://www.openeuler.org/en/security/cve/detail.HTML?id=CVE-2021-33656&packageName=kernel

来源:MISC

链接:https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch

来源:MLIST

链接:http://www.openwall.com/lists/oss-security/2022/07/19/3

来源:MLIST

链接:https://lists.debian.org/debian-lts-announce/2022/10/msg00000.HTML

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4317

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168335/Ubuntu-Security-Notice-USN-5605-1.HTML

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168177/Ubuntu-Security-Notice-USN-5580-1.HTML

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168238/Ubuntu-Security-Notice-USN-5592-1.HTML

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168203/Ubuntu-Security-Notice-USN-5589-1.HTML

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168589/Ubuntu-Security-Notice-USN-5650-1.HTML

来源:cxsecurity.com

链接:https://cxsecurity.com/cveshow/CVE-2021-33656/

来源:vigilance.fr

链接:https://vigilance.fr/vulnerability/Linux-kernel-buffer-overflow-via-PIO-FONT-38848

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168253/Ubuntu-Security-Notice-USN-5595-1.HTML

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4063

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4184

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4087

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4342

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4257

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4278

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168221/Ubuntu-Security-Notice-USN-5591-1.HTML

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4225

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/168264/Ubuntu-Security-Notice-USN-5597-1.HTML

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2022.4118

受影响实体

暂无

补丁

• Linux kernel 缓冲区错误漏洞的修复措施