# CVE-2024-0853: curl: curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*)...

CVE-2024-0853 is fixed in 12 products on 1 platform, first by curl 8.5.0-2ubuntu2, released January 30, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-0853
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0110
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 30, 2024

## Description

curl inadvertently kept the SSL session ID for connections in its cache even when the verify status (*OCSP stapling*) test failed. A subsequent transfer to the same hostname could then succeed if the session ID cache was still fresh, which then skipped the verify status check.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | curl Debian 13.5 (trixie) | 8.6.0-1 | [DEBIAN-CVE-2024-0853](https://patchblox.com/security/data/fix/linux/debian-cve-2024-0853.md) | Feb 3, 2024 |
| Linux | curl Debian 14 | 8.6.0-1 | [DEBIAN-CVE-2024-0853](https://patchblox.com/security/data/fix/linux/debian-cve-2024-0853.md) | Feb 3, 2024 |
| Linux | curl Ubuntu 24.04.5 LTS (noble) | 8.5.0-2ubuntu2 | [curl 8.5.0-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-curl-8.5.0-2ubuntu2.md) | Jan 30, 2024 |
| Linux | curl amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | curl-debuginfo amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | curl-debugsource amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | curl-minimal amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | curl-minimal-debuginfo amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | libcurl amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | libcurl-debuginfo amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | libcurl-devel amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | libcurl-minimal amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | libcurl-minimal-debuginfo amzn 2023 | 8.5.0-1.amzn2023.0.3 | [ALAS2023-2024-581](https://patchblox.com/security/data/fix/linux/alas2023-2024-581.md) | Mar 27, 2024 |
| Linux | libcurl3-gnutls Ubuntu 24.04.5 LTS (noble) | 8.5.0-2ubuntu2 | [libcurl3-gnutls 8.5.0-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcurl3-gnutls-8.5.0-2ubuntu2.md) | Jan 30, 2024 |
| Linux | libcurl4 Ubuntu 24.04.5 LTS (noble) | 8.5.0-2ubuntu2 | [libcurl4 8.5.0-2ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libcurl4-8.5.0-2ubuntu2.md) | Jan 30, 2024 |

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Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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