Directory Traversal Affecting libcurl-minimal package, versions <0:8.0.1-1.amzn2023


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.35% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Directory Traversal vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-AMZN2023-LIBCURLMINIMAL-5671534
  • published8 Jun 2023
  • disclosed30 Mar 2023

Introduced: 30 Mar 2023

CVE-2023-27534  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 libcurl-minimal to version 0:8.0.1-1.amzn2023 or higher.
This issue was patched in ALAS2023-2023-193.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-minimal package and not the libcurl-minimal package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde () character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /2/foo while accessing a server with a specific user.

CVSS Scores

version 3.1