# RHSA-2023:1786: Security update for 2 packages

RHSA-2023:1786, released April 14, 2023, fixes 9 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2023-1786
- Platform: Linux
- Released: Apr 14, 2023
- Priority: High (Closes CVE-2023-1999, high severity)
- CVEs: 9, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2023:1786

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [firefox](https://patchblox.com/security/data/product/linux/firefox.md) | RHEL 9 | 0:102.10.0-1.el9_1 |
| [firefox-x11](https://patchblox.com/security/data/product/linux/firefox-x11.md) | RHEL 9 | 0:102.10.0-1.el9_1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-1999](https://patchblox.com/security/data/cve/CVE-2023-1999.md) | High | Chromium: CVE-2023-1999 Use after free in libwebp | 7.5 | 0.0095 |  |
| [CVE-2023-29535](https://patchblox.com/security/data/cve/CVE-2023-29535.md) | High | Mozilla Firefox and 4 others: Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly… | 7.5 | 0.0075 |  |
| [CVE-2023-29541](https://patchblox.com/security/data/cve/CVE-2023-29541.md) | High | Mozilla Firefox and 4 others: Improper Encoding or Escaping of Output | 8.8 | 0.0074 |  |
| [CVE-2023-29539](https://patchblox.com/security/data/cve/CVE-2023-29539.md) | High | Mozilla Firefox and 4 others: When handling the filename directive in the Content-Disposition header, the filename would be truncated… | 8.8 | 0.0074 |  |
| [CVE-2023-29550](https://patchblox.com/security/data/cve/CVE-2023-29550.md) | High | Mozilla Firefox and 4 others: Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. | 8.8 | 0.0071 |  |
| [CVE-2023-29536](https://patchblox.com/security/data/cve/CVE-2023-29536.md) | High | Mozilla Firefox and 4 others: An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled… | 8.8 | 0.0070 |  |
| [CVE-2023-29533](https://patchblox.com/security/data/cve/CVE-2023-29533.md) | High | Mozilla Firefox and 4 others: A website could have obscured the fullscreen notification by using a combination of <code>window.open</code>,… | 7.5 | 0.0057 |  |
| [CVE-2023-29548](https://patchblox.com/security/data/cve/CVE-2023-29548.md) | Routine | Mozilla Firefox and 4 others: A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result. | 6.5 | 0.0070 |  |
| [CVE-2023-1945](https://patchblox.com/security/data/cve/CVE-2023-1945.md) | Routine | Mozilla Thunderbird and 1 other: Out-of-bounds Write | 6.5 | 0.0064 |  |

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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