漏洞信息详情

QEMU 缓冲区错误漏洞

• CNNVD编号：CNNVD-202106-1244
• 危害等级： 低危
  
• CVE编号： CVE-2021-3593
• 漏洞类型： 缓冲区错误
• 发布时间： 2021-06-14
• 威胁类型： 本地
• 更新时间： 2022-04-06
• 厂        商：
• 漏洞来源：

漏洞简介

QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。

QEMU 的 slirp 存在缓冲区错误漏洞，该漏洞源于函数 udp6_input() 处理来自来宾的小于 udphdr 结构大小的 udp 数据包时，它使用工作 mbuf 缓冲区外部的内存。此问题可能会导致对来宾的越界读取访问或间接内存泄露。

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://bugzilla.redhat.com/show_bug.cgi?id=1970487

参考网址

来源:CONFIRM

链接:https://security.netapp.com/advisory/ntap-20210805-0004/

来源:GENTOO

链接:https://security.gentoo.org/glsa/202107-44

来源:FEDORA

链接:https://lists.fedoraproject.org/archives/list/[email protected]/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/

来源:FEDORA

链接:https://lists.fedoraproject.org/archives/list/[email protected]/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/

来源:MISC

链接:https://bugzilla.redhat.com/show_bug.cgi?id=1970487

来源:MLIST

链接:https://lists.debian.org/debian-lts-announce/2022/04/msg00002.HTML

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/163556/Gentoo-Linux-Security-Advisory-202107-44.HTML

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.2415

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.2479

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.3557

来源:www.cybersecurity-help.cz

链接:https://www.cybersecurity-help.cz/vdb/SB2021072002

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/163519/Ubuntu-Security-Notice-USN-5010-1.HTML

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.2527

来源:www.cybersecurity-help.cz

链接:https://www.cybersecurity-help.cz/vdb/SB2021062221

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.2561

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/164865/Red-Hat-Security-Advisory-2021-4191-03.HTML

来源:vigilance.fr

链接:https://vigilance.fr/vulnerability/libslirp-four-vulnerabilities-35700

来源:access.redhat.com

链接:https://access.redhat.com/security/cve/cve-2021-3593

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.3791

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.2541

来源:www.auscert.org.au

链接:https://www.auscert.org.au/bulletins/ESB-2021.2596

受影响实体

暂无

补丁

• QEMU 缓冲区错误漏洞的修复措施