CVE-2023-23915

Description

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Vendor Advisory gentoo.org
Affected: n/a https://github.com/curl/curl
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/1826048 not applicable
https://security.netapp.com/advisory/ntap-20230309-0006/ third party advisory
https://security.gentoo.org/glsa/202310-12 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-23915?
CVE-2023-23915 has been scored as a medium severity vulnerability.
How to fix CVE-2023-23915?
To fix CVE-2023-23915, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-23915 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-23915 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-23915?
CVE-2023-23915 affects n/a https://github.com/curl/curl.
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