# RHSA-2023:4523: Security update for 4 packages

RHSA-2023:4523, released August 8, 2023, fixes 2 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2023-4523
- Platform: Linux
- Released: Aug 8, 2023
- Priority: Routine (Closes 2 CVEs, none high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2023:4523

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [curl](https://patchblox.com/security/data/product/linux/curl.md) | RHEL 8 | 0:7.61.1-30.el8_8.3 |
| [libcurl](https://patchblox.com/security/data/product/linux/libcurl.md) | RHEL 8 | 0:7.61.1-30.el8_8.3 |
| [libcurl-devel](https://patchblox.com/security/data/product/linux/libcurl-devel.md) | RHEL 8 | 0:7.61.1-30.el8_8.3 |
| [libcurl-minimal](https://patchblox.com/security/data/product/linux/libcurl-minimal.md) | RHEL 8 | 0:7.61.1-30.el8_8.3 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-28321](https://patchblox.com/security/data/cve/CVE-2023-28321.md) | Routine | curl: An improper certificate validation vulnerability exists in curl <v8.1.0 inthe way it supports matching of wildcard pa... | 5.9 | 0.0181 |  |
| [CVE-2023-27536](https://patchblox.com/security/data/cve/CVE-2023-27536.md) | Routine | libcurl: The curl packages provide the libcurl library and the curl utility for downloading files from servers using various p... | 5.9 | 0.0176 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo