<p>Upgrade <code>Alpine:3.16</code> <code>curl</code> to version 7.78.0-r0 or higher.</p>

Use of Uninitialized Resource Affecting curl package, versions <7.78.0-r0

Threat Intelligence

0.37% (74^th percentile)

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Snyk ID SNYK-ALPINE316-CURL-2841981
published 26 Jul 2021
disclosed 5 Aug 2021

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Introduced: 26 Jul 2021

CVE-2021-22925 Open this link in a new tab CWE-908 Open this link in a new tab

How to fix?

Upgrade Alpine:3.16 curl to version 7.78.0-r0 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:3.16 relevant fixed versions and status.

curl supports the -t command line option, known as CURLOPT_TELNETOPTIONSin libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending NEW_ENV variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

Low
Privileges Required (PR)

None
User Interaction (UI)

None

Scope (S)

Unchanged

Confidentiality (C)

Low
Integrity (I)

None
Availability (A)

None

Use of Uninitialized Resource Affecting curl package, versions <7.78.0-r0

Severity

Snyk's Security Team recommends NVD's CVSS assessment