Hackerone: CVE-2023-38039 HTTP headers eat all memory
CVE-2023-38039 is fixed in 34 products on 3 platforms, first by curl 8.2.1-1ubuntu3, released September 12, 2023. It is not reported as exploited. Patch Radar priority: High.
When curl retrieves an HTTP response, it stores the incoming headers so that they can be accessed later via the libcurl headers API. However, curl did not have a limit in how many or how large headers it would accept in a response, allowing a malicious server to stream an endless series of headers and eventually cause curl to run out of heap memory.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Windows 10 Version 1809 for 32-bit Systems | 17763.5122 | KB5032196 | Nov 14, 2023 |
| Windows 10 Version 1809 for ARM64-based Systems | 17763.5122 | KB5032196 | Nov 14, 2023 |
| Windows 10 Version 1809 for x64-based Systems | 17763.5122 | KB5032196 | Nov 14, 2023 |
| Windows 10 Version 21H2 for 32-bit Systems | 22000.2600 | KB5032192 | Nov 14, 2023 |
| Windows 10 Version 21H2 for ARM64-based Systems | KB5032189 | Nov 14, 2023 | |
| Windows 10 Version 21H2 for x64-based Systems | KB5032189 | Nov 14, 2023 | |
| Windows 10 Version 22H2 for 32-bit Systems | KB5032189 | Nov 14, 2023 | |
| Windows 10 Version 22H2 for ARM64-based Systems | KB5032189 | Nov 14, 2023 | |
| Windows 10 Version 22H2 for x64-based Systems | KB5032189 | Nov 14, 2023 | |
| Windows 11 Version 22H2 for ARM64-based Systems | KB5032190 | Nov 14, 2023 | |
| Windows 11 Version 22H2 for x64-based Systems | KB5032190 | Nov 14, 2023 | |
| Windows 11 Version 23H2 for ARM64-based Systems | KB5032190 | Nov 14, 2023 | |
| Windows 11 Version 23H2 for x64-based Systems | KB5032190 | Nov 14, 2023 | |
| Windows 11 version 21H2 for ARM64-based Systems | 22000.2600 | KB5032192 | Nov 14, 2023 |
| Windows 11 version 21H2 for x64-based Systems | 22000.2600 | KB5032192 | Nov 14, 2023 |
| Windows Server 2019 | 17763.5122 | KB5032196 | Nov 14, 2023 |
| Windows Server 2019 (Server Core installation) | 17763.5122 | KB5032196 | Nov 14, 2023 |
| Windows Server 2022 | 20348.2113 | KB5032198 | Nov 14, 2023 |
| Windows Server 2022 (Server Core installation) | 20348.2113 | KB5032198 | Nov 14, 2023 |
| macOS | |||
| Monterey | 12.7.3 | Monterey 12.7.3 | Jan 22, 2024 |
| Ventura | 13.6.4 | Ventura 13.6.4 | Jan 22, 2024 |
| Linux | |||
| curl · Debian 12.15 (bookworm) | 7.88.1-10+deb12u3 | DEBIAN-CVE-2023-38039 | Sep 15, 2023 |
| curl · Debian 13.5 (trixie) | 8.3.0-1 | DEBIAN-CVE-2023-38039 | Sep 15, 2023 |
| curl · Debian 14 | 8.3.0-1 | DEBIAN-CVE-2023-38039 | Sep 15, 2023 |
| curl · Ubuntu 24.04.5 LTS (noble) | 8.2.1-1ubuntu3 | curl 8.2.1-1ubuntu3 | Sep 12, 2023 |
| curl · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| curl-debuginfo · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| curl-debugsource · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| curl-minimal · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| curl-minimal-debuginfo · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| libcurl · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| libcurl-debuginfo · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| libcurl-devel · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| libcurl-minimal · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| libcurl-minimal-debuginfo · amzn 2023 | 8.3.0-1.amzn2023.0.1 | ALAS2023-2023-368 | Sep 27, 2023 |
| libcurl3-gnutls · Ubuntu 24.04.5 LTS (noble) | 8.2.1-1ubuntu3 | libcurl3-gnutls 8.2.1-1ubuntu3 | Sep 12, 2023 |
| libcurl3-nss · Ubuntu 24.04.5 LTS (noble) | 8.2.1-1ubuntu3 | libcurl3-nss 8.2.1-1ubuntu3 | Sep 12, 2023 |
| libcurl4 · Ubuntu 24.04.5 LTS (noble) | 8.2.1-1ubuntu3 | libcurl4 8.2.1-1ubuntu3 | Sep 12, 2023 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.