Use of Uninitialized Resource Affecting libcurl-devel package, versions <7.60.0-3.47.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.55% (78th percentile)

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  • Snyk IDSNYK-SLES151-LIBCURLDEVEL-2669876
  • published14 Apr 2022
  • disclosed21 Jul 2021

Introduced: 21 Jul 2021

CVE-2021-22925  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 libcurl-devel to version 7.60.0-3.47.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libcurl-devel package and not the libcurl-devel package as distributed by SLES. See How to fix? for SLES:15.1 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.

CVSS Scores

version 3.1