curl: A cleartext transmission of sensitive information vulnerability exists in curl <v7.88.0 that could cause HSTS functio...
CVE-2023-23915 is fixed in 13 products on 1 platform, first by curl 7.81.0-1ubuntu1.8, released February 14, 2023. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| curl · Debian 12.15 (bookworm) | 7.88.1-1 | DEBIAN-CVE-2023-23915 | Feb 23, 2023 |
| curl · Debian 13.5 (trixie) | 7.88.1-1 | DEBIAN-CVE-2023-23915 | Feb 23, 2023 |
| curl · Debian 14 | 7.88.1-1 | DEBIAN-CVE-2023-23915 | Feb 23, 2023 |
| curl · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.8 | curl 7.81.0-1ubuntu1.8 | Feb 14, 2023 |
| curl · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| curl-debuginfo · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| curl-debugsource · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| curl-minimal · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| curl-minimal-debuginfo · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| libcurl · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| libcurl-debuginfo · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| libcurl-devel · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| libcurl-minimal · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| libcurl-minimal-debuginfo · amzn 2023 | 7.88.0-1.amzn2023.0.1 | ALAS2023-2023-114 | Feb 21, 2023 |
| libcurl3-gnutls · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.8 | libcurl3-gnutls 7.81.0-1ubuntu1.8 | Feb 14, 2023 |
| libcurl3-nss · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.8 | libcurl3-nss 7.81.0-1ubuntu1.8 | Feb 14, 2023 |
| libcurl4 · Ubuntu 22.04.1 LTS (jammy) | 7.81.0-1ubuntu1.8 | libcurl4 7.81.0-1ubuntu1.8 | Feb 14, 2023 |
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