中危 github.com/gomarkdown/markdown 解析引文时越界读取 (CVE-2023-42821)
CVE编号
CVE-2023-42821利用情况
暂无补丁情况
官方补丁披露时间
2023-09-23漏洞描述
The package `github.com/gomarkdown/markdown` is a Go library for parsing Markdown text and rendering as HTML. Prior to pseudoversion `0.0.0-20230922105210-14b16010c2ee`, which corresponds with commit `14b16010c2ee7ff33a940a541d993bd043a88940`, parsing malformed markdown input with parser that uses parser.Mmark extension could result in out-of-bounds read vulnerability. To exploit the vulnerability, parser needs to have `parser.Mmark` extension set. The panic occurs inside the `citation.go` file on the line 69 when the parser tries to access the element past its length. This can result in a denial of service. Commit `14b16010c2ee7ff33a940a541d993bd043a88940`/pseudoversion `0.0.0-20230922105210-14b16010c2ee` contains a patch for this issue.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。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 | gomarkdown | markdown | - | - | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_12 | golang-github-gomarkdown-markdown | * | Up to (including) 0.0~git20220731.dcdaee8-2 | |||||
| 运行在以下环境 | |||||||||
| 系统 | debian_sid | golang-github-gomarkdown-markdown | * | Up to (including) 0.0~git20220731.dcdaee8-2 | |||||
- 攻击路径 本地
- 攻击复杂度 复杂
- 权限要求 普通权限
- 影响范围 越权影响
- 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 N/A
| CWE-ID | 漏洞类型 |
| CWE-125 | 跨界内存读 |
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