低危 libexif：处理佳能EXIF MakerNote数据时不受限制的大小可能会导致解码EXIF数据消耗大量计算时间
CVE编号
CVE-2020-13114利用情况
暂无补丁情况
官方补丁披露时间
2020-05-22漏洞描述
在0.6.22之前的libexif中发现了一个问题。处理佳能EXIF MakerNote数据时不受限制的大小可能会导致解码EXIF数据消耗大量计算时间。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://libexif.github.io/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 | libexif_project | libexif | * | Up to (excluding) 0.6.22 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alibaba_cloud_linux_2.1903 | libexif-debuginfo | * | Up to (excluding) 0.6.22-1.1.al7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.10 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.11 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.12 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.13 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.14 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.15 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.16 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.17 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.18 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.8 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_3.9 | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | alpine_edge | libexif | * | Up to (excluding) 0.6.22-r0 | |||||
| 运行在以下环境 | |||||||||
| 系统 | amazon_2 | libexif | * | Up to (excluding) 0.6.22-1.amzn2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_7 | libexif | * | Up to (excluding) 0.6.22-1.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | centos_8 | libexif-debugsource | * | Up to (excluding) 0.6.22-4.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_10 | libexif | * | Up to (excluding) 0.6.21-5.1+deb10u3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_11 | libexif | * | Up to (excluding) 0.6.21-9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | libexif | * | Up to (excluding) 0.6.21-9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_8 | libexif | * | Up to (excluding) 0.6.21-2+deb8u2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_9 | libexif | * | Up to (excluding) 0.6.21-2+deb9u3 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | libexif | * | Up to (excluding) 0.6.21-9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_31 | libexif-debuginfo | * | Up to (excluding) 0.6.22-1.fc31 | |||||
| 运行在以下环境 | |||||||||
| 系统 | fedora_32 | libexif-debuginfo | * | Up to (excluding) 0.6.22-1.fc32 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10 | libexif | * | Up to (excluding) 0.6.22-2.el7_9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_aarch64_V10SP2 | libexif | * | Up to (excluding) 0.6.21-22.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10 | libexif | * | Up to (excluding) 0.6.22-2.el7_9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | kylinos_x86_64_V10SP2 | libexif | * | Up to (excluding) 0.6.21-22.ky10 | |||||
| 运行在以下环境 | |||||||||
| 系统 | opensuse_Leap_15.1 | libexif-devel-32bit | * | Up to (excluding) 0.6.22-lp151.4.6.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_7 | oraclelinux-release | * | Up to (excluding) 0.6.22-1.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | oracle_8 | oraclelinux-release | * | Up to (excluding) 0.6.22-4.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_7 | libexif | * | Up to (excluding) 0.6.22-1.el7 | |||||
| 运行在以下环境 | |||||||||
| 系统 | redhat_8 | libexif-debugsource | * | Up to (excluding) 0.6.22-4.el8 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12 | libexif | * | Up to (excluding) 0.6.22-8.9 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP4 | libexif12-32bit | * | Up to (excluding) 0.6.22-8.9.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | suse_12_SP5 | libexif12-32bit | * | Up to (excluding) 0.6.22-8.9.1 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04 | libexif | * | Up to (excluding) 0.6.21-2ubuntu0.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_16.04.7_lts | libexif | * | Up to (excluding) 0.6.21-2ubuntu0.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04 | libexif | * | Up to (excluding) 0.6.21-4ubuntu0.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_18.04.5_lts | libexif | * | Up to (excluding) 0.6.21-4ubuntu0.5 | |||||
| 运行在以下环境 | |||||||||
| 系统 | ubuntu_20.04 | libexif | * | Up to (excluding) 0.6.21-6ubuntu0.3 | |||||
- 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
| CWE-ID | 漏洞类型 |
| CWE-400 | 未加控制的资源消耗（资源穷尽） |
| CWE-770 | 不加限制或调节的资源分配 |
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