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Missing Initialization of Resource Affecting curl package, versions <7.79.1-1

Severity

0.0
low
0
10

    Threat Intelligence

    EPSS
    0.2% (59th percentile)

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  • Snyk ID SNYK-DEBIAN12-CURL-1544025
  • published 26 May 2021
  • disclosed 11 Jun 2021
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Introduced: 26 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 Debian:12 curl to version 7.79.1-1 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 Debian. See How to fix? for Debian:12 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
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Snyk

3.1 low
  • 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
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NVD

3.1 low
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SUSE

5.3 medium
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Red Hat

3.1 low