# CVE-2021-45931: harfbuzz: Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2021-45931: 	HarfBuzz...

CVE-2021-45931 is fixed in 7 products on 1 platform, first by ALAS2023-2023-036, released February 17, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-45931
- Priority: Routine
- CVSS: n/a (moderate)
- EPSS: 0.0184
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 17, 2023

## Description

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2021-45931: 	HarfBuzz 2.9.0 has an out-of-bounds write in hb_bit_set_invertible_t::set (called from hb_sparseset_t<hb_bit_set_invertible_t>::set and hb_set_copy).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | harfbuzz amzn 2023 | 2.9.1-1.amzn2023.0.3 | [ALAS2023-2023-036](https://patchblox.com/security/data/fix/linux/alas2023-2023-036.md) | Feb 17, 2023 |
| Linux | harfbuzz-debuginfo amzn 2023 | 2.9.1-1.amzn2023.0.3 | [ALAS2023-2023-036](https://patchblox.com/security/data/fix/linux/alas2023-2023-036.md) | Feb 17, 2023 |
| Linux | harfbuzz-debugsource amzn 2023 | 2.9.1-1.amzn2023.0.3 | [ALAS2023-2023-036](https://patchblox.com/security/data/fix/linux/alas2023-2023-036.md) | Feb 17, 2023 |
| Linux | harfbuzz-devel amzn 2023 | 2.9.1-1.amzn2023.0.3 | [ALAS2023-2023-036](https://patchblox.com/security/data/fix/linux/alas2023-2023-036.md) | Feb 17, 2023 |
| Linux | harfbuzz-devel-debuginfo amzn 2023 | 2.9.1-1.amzn2023.0.3 | [ALAS2023-2023-036](https://patchblox.com/security/data/fix/linux/alas2023-2023-036.md) | Feb 17, 2023 |
| Linux | harfbuzz-icu amzn 2023 | 2.9.1-1.amzn2023.0.3 | [ALAS2023-2023-036](https://patchblox.com/security/data/fix/linux/alas2023-2023-036.md) | Feb 17, 2023 |
| Linux | harfbuzz-icu-debuginfo amzn 2023 | 2.9.1-1.amzn2023.0.3 | [ALAS2023-2023-036](https://patchblox.com/security/data/fix/linux/alas2023-2023-036.md) | Feb 17, 2023 |

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Data as of 2026-11-10T01:44:33Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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