# libsox-fmt-alsa 14.4.2-3ubuntu0.18.04.2: libsox-fmt-alsa 14.4.2-3ubuntu0.18.04.2 for Ubuntu 18.04.6 LTS (bionic)

libsox-fmt-alsa 14.4.2-3ubuntu0.18.04.2, released August 25, 2022, fixes 9 CVEs in libsox-fmt-alsa. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/linux/ubuntu-bionic-libsox-fmt-alsa-14.4.2-3ubuntu0.18.04.2
- Platform: Linux
- Released: Aug 25, 2022
- Priority: Urgent (Closes CVE-2021-3643, rated Critical)
- CVEs: 9, exploited: 0, on CISA KEV: 0

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libsox-fmt-alsa](https://patchblox.com/security/data/product/linux/libsox-fmt-alsa.md) | Ubuntu 18.04.6 LTS (bionic) | 14.4.2-3ubuntu0.18.04.2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-3643](https://patchblox.com/security/data/cve/CVE-2021-3643.md) | Urgent | sox: A flaw was found in sox 14.4.1 | 9.1 | 0.0147 |  |
| [CVE-2021-40426](https://patchblox.com/security/data/cve/CVE-2021-40426.md) | High | sox: A heap-based buffer overflow vulnerability exists in the sphere.c start_read() functionality of Sound Exchange libsox... | 8.8 | 0.0205 |  |
| [CVE-2022-31650](https://patchblox.com/security/data/cve/CVE-2022-31650.md) | Routine | libsox-fmt-mp3: In SoX 14.4.2, there is a floating-point exception in lsx_aiffstartwrite in aiff.c in libsox.a. | 5.5 | 0.0111 |  |
| [CVE-2022-31651](https://patchblox.com/security/data/cve/CVE-2022-31651.md) | Routine | libsox-fmt-base: In SoX 14.4.2, there is an assertion failure in rate_init in rate.c in libsox.a. | 5.5 | 0.0111 |  |
| [CVE-2019-13590](https://patchblox.com/security/data/cve/CVE-2019-13590.md) | Routine | libsox3: An issue was discovered in libsox.a in SoX 14.4.2 | n/a | 0.0106 |  |
| [CVE-2021-23159](https://patchblox.com/security/data/cve/CVE-2021-23159.md) | Routine | sox: sox - security update | 5.5 | 0.0048 |  |
| [CVE-2021-33844](https://patchblox.com/security/data/cve/CVE-2021-33844.md) | Routine | sox: A floating point exception (divide-by-zero) issue was discovered in SoX in functon startread() of wav.c file | 5.5 | 0.0048 |  |
| [CVE-2021-23172](https://patchblox.com/security/data/cve/CVE-2021-23172.md) | Routine | sox: A vulnerability was found in SoX, where a heap-buffer-overflow occurs in function startread() in hcom.c file | 5.5 | 0.0046 |  |
| [CVE-2021-23210](https://patchblox.com/security/data/cve/CVE-2021-23210.md) | Routine | sox: A floating point exception (divide-by-zero) issue was discovered in SoX in functon read_samples() of voc.c file | 5.5 | 0.0046 |  |

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Data as of 2026-11-12T19:57:06Z 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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