malcontent's archive extraction could write outside extraction directory

malcontent discovers supply-chain compromises through. context, differential analysis, and YARA. Starting in version 1.8.0 and prior to version 1.20.3, malcontent could be made to create symlinks outside the intended extraction directory when scanning a specially crafted tar or deb archive. The `handleSymlink` function received arguments in the wrong order, causing the symlink target to be used as the symlink location. Additionally, symlink targets were not validated to ensure they resolved within the extraction directory. Version 1.20.3 introduces fixes that swap handleSymlink arguments, validate symlink location, and validate symlink targets that resolve within an extraction directory.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

对路径名的限制不恰当(路径遍历)

malcontent 安全漏洞

malcontent是Chainguard开源的一个供应链攻击检测工具。 malcontent 1.20.3之前版本存在安全漏洞，该漏洞源于扫描特制tar或deb归档时可能创建预期提取目录外的符号链接。

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