<p>Upgrade <code>Alpine:3.16</code> <code>curl</code> to version 7.77.0-r0 or higher.</p>

Missing Initialization of Resource Affecting curl package, versions <7.77.0-r0

Threat Intelligence

0.2% (59^th percentile)

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Snyk ID SNYK-ALPINE316-CURL-2842521
published 28 May 2021
disclosed 11 Jun 2021

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Introduced: 28 May 2021

CVE-2021-22898 Open this link in a new tab CWE-909 Open this link in a new tab

How to fix?

Upgrade Alpine:3.16 curl to version 7.77.0-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 7.7 through 7.76.1 suffers from an information disclosure when the -t command line option, known as CURLOPT_TELNETOPTIONS in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.

References

CVSS Scores

version 3.1

Attack Vector (AV)

Network
Attack Complexity (AC)

High
Privileges Required (PR)

None
User Interaction (UI)

Required

Scope (S)

Unchanged

Confidentiality (C)

Low
Integrity (I)

None
Availability (A)

None

Missing Initialization of Resource Affecting curl package, versions <7.77.0-r0

Severity

Snyk's Security Team recommends NVD's CVSS assessment