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Ubuntu: (Multiple Advisories) (CVE-2022-42916): curl vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2022-42916): curl vulnerabilities

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
10/26/2022
Created
10/28/2022
Added
10/27/2022
Modified
10/23/2024

Description

In curl before 7.86.0, the HSTS check could be bypassed to trick it into staying with HTTP. Using its HSTS support, curl can be instructed to use HTTPS directly (instead of using an insecure cleartext HTTP step) even when HTTP is provided in the URL. This mechanism could be bypassed if the host name in the given URL uses IDN characters that get replaced with ASCII counterparts as part of the IDN conversion, e.g., using the character UTF-8 U+3002 (IDEOGRAPHIC FULL STOP) instead of the common ASCII full stop of U+002E (.). The earliest affected version is 7.77.0 2021-05-26.

Solution(s)

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

References

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