Directory Traversal Affecting curl package, versions <7.58.0-2ubuntu3.24


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.39% (73rd percentile)

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  • Snyk IDSNYK-UBUNTU1804-CURL-3364980
  • published20 Mar 2023
  • disclosed30 Mar 2023

Introduced: 20 Mar 2023

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

How to fix?

Upgrade Ubuntu:18.04 curl to version 7.58.0-2ubuntu3.24 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 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