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


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.26% (66th percentile)

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  • Snyk IDSNYK-ALPINE315-CURL-1926632
  • published28 May 2021
  • disclosed11 Jun 2021

Introduced: 28 May 2021

CVE-2021-22898  (opens in a new tab)
CWE-909  (opens in a new tab)

How to fix?

Upgrade Alpine:3.15 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:3.15 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.

CVSS Scores

version 3.1