Cleartext Transmission of Sensitive Information Affecting curl package, versions <7.81.0-1ubuntu1.8


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.07% (32nd percentile)

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  • Snyk IDSNYK-UBUNTU2204-CURL-3321674
  • published15 Feb 2023
  • disclosed23 Feb 2023

Introduced: 15 Feb 2023

CVE-2023-23915  (opens in a new tab)
CWE-319  (opens in a new tab)

How to fix?

Upgrade Ubuntu:22.04 curl to version 7.81.0-1ubuntu1.8 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 Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functionality to behave incorrectly when multiple URLs are requested in parallel. Using its HSTS support, curl can be instructed to use HTTPS instead of using an insecure clear-text HTTP step even when HTTP is provided in the URL. This HSTS mechanism would however surprisingly fail when multiple transfers are done in parallel as the HSTS cache file gets overwritten by the most recentlycompleted transfer. A later HTTP-only transfer to the earlier host name would then not get upgraded properly to HSTS.

CVSS Scores

version 3.1