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Ubuntu: (Multiple Advisories) (CVE-2021-22925): curl vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2021-22925): curl vulnerabilities

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:N)
Published
07/21/2021
Created
07/27/2021
Added
07/23/2021
Modified
05/01/2023

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)

  • ubuntu-upgrade-curl
  • ubuntu-upgrade-libcurl3
  • ubuntu-upgrade-libcurl3-gnutls
  • ubuntu-upgrade-libcurl3-nss
  • ubuntu-upgrade-libcurl4

References

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