CVE编号
CVE-2021-33582利用情况
暂无补丁情况
官方补丁披露时间
2021-09-01漏洞描述
cyrus-imapd是一个IMAP服务器，其中IMAP是访问邮件的协议。cyrus-imapd 中存在加密问题漏洞，该漏洞源于产品的内部哈希表未使用有效的字符串加密算法导致攻击者可预测字符串位置。攻击者可通过将多个输入定向到单个位置导致CPU拒绝服务。
解决建议
目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://www.cyrusimap.org/imap/download/release-notes/3.4/index.html
参考链接 |
|
|---|---|
| https://access.redhat.com/security/cve/cve-2021-33582 | |
| https://cyrus.topicbox.com/groups/announce/T3dde0a2352462975-M1386fc44adf967e... | |
| https://github.com/cyrusimap/cyrus-imapd/commits/master | |
| https://github.com/cyrusimap/cyrus-imapd/security/advisories | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://lists.fedoraproject.org/archives/list/[email protected]... | |
| https://www.cyrusimap.org/imap/download/release-notes/index.html |
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 | |||||||||
| 应用 | cyrus | imap | * |
Up to (excluding) 3.0.16 |
|||||
| 运行在以下环境 | |||||||||
| 应用 | cyrus | imap | * |
From (including) 3.2.0 |
Up to (excluding) 3.2.8 |
||||
| 运行在以下环境 | |||||||||
| 应用 | cyrus | imap | * |
From (including) 3.4.0 |
Up to (excluding) 3.4.2 |
||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | cyrus-imapd | * |
Up to (excluding) 3.0.7-20.1.al8.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | cyrus-imapd | * |
Up to (excluding) 2.4.22-1.amzn2.0.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_AMI | cyrus-imapd | * |
Up to (excluding) 2.4.22-1.10.amzn1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | cyrus-imapd | * |
Up to (excluding) 3.0.7-20.el8_4.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | cyrus-imapd | * |
Up to (excluding) 3.0.8-6+deb10u6 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | cyrus-imapd | * |
Up to (excluding) 3.2.6-2+deb11u1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | cyrus-imapd | * |
Up to (excluding) 3.4.1-2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | cyrus-imapd | * |
Up to (excluding) 2.5.10-3+deb9u2 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_34 | cyrus-imapd | * |
Up to (excluding) 3.2.8-2.fc34 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_35 | cyrus-imapd | * |
Up to (excluding) 3.2.8-2.fc35 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | cyrus-imapd | * |
Up to (excluding) 3.0.7-20.el8_4.1 |
|||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | cyrus-imapd | * |
Up to (excluding) 3.0.7-20.el8_4.1 |
|||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 无需权限
- 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 无影响
- 数据完整性 无影响
- 服务器危害 DoS
- 全网数量 N/A
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