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FreeBSD: VID-AA646C01-EA0D-11EB-9B84-D4C9EF517024 (CVE-2021-22925): cURL -- Multiple vulnerabilities

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FreeBSD: VID-AA646C01-EA0D-11EB-9B84-D4C9EF517024 (CVE-2021-22925): cURL -- Multiple vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
07/21/2021
Created
11/08/2022
Added
11/04/2022
Modified
11/04/2022

Description

curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in 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.

Solution(s)

  • freebsd-upgrade-package-curl

References

  • CVE-2021-22925
  • USN-5021-1
  • USN-5021-2

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