Directory Traversal Affecting curl package, versions <7.88.1-r1


Severity

Recommended
0.0
high
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
0.09% (28th percentile)

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  • Snyk IDSNYK-ALPINE317-CURL-3364766
  • 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 Alpine:3.17 curl to version 7.88.1-r1 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 Alpine. See How to fix? for Alpine:3.17 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 Base Scores

version 3.1