MEDIUM 6.5 Microsoft

CVE-2023-23915

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.

Microsoft Security Update 2023-Feb: 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.

Affected Products

azl3 tensorflow 2.11.1-1 on Azure Linux 3.0
azl3 rust 1.86.0-1 on Azure Linux 3.0
azl3 rust 1.75.0-14 on Azure Linux 3.0
cm1 rust 1.59.0-1 on CBL Mariner 1.0
cm1 mysql 8.0.32-1 on CBL Mariner 1.0
cm1 curl 7.88.1-1 on CBL Mariner 1.0
cm1 cmake 3.21.4-3 on CBL Mariner 1.0
cbl2 rust 1.72.0-2 on CBL Mariner 2.0

References

Published: 2023-02-14 · Source: Microsoft · Feed updated: 2026-08-20

This medium severity vulnerability with a CVSS score of 6.5 was published on 2023-02-14 via Microsoft. Affected: azl3 tensorflow 2.11.1-1 on Azure Linux 3.0, azl3 rust 1.86.0-1 on Azure Linux 3.0, azl3 rust 1.75.0-14 on Azure Linux 3.0 and 5 more.

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