# RHSA-2020:1636: Security update for 2 packages

RHSA-2020:1636, released April 28, 2020, fixes 2 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2020-1636
- Platform: Linux
- Released: Apr 28, 2020
- Priority: High (Closes CVE-2018-13139, high severity)
- CVEs: 2, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2020:1636

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [libsndfile](https://patchblox.com/security/data/product/linux/libsndfile.md) | RHEL 8 | 0:1.0.28-10.el8 |
| [libsndfile-devel](https://patchblox.com/security/data/product/linux/libsndfile-devel.md) | RHEL 8 | 0:1.0.28-10.el8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2018-13139](https://patchblox.com/security/data/cve/CVE-2018-13139.md) | High | libsndfile1: A stack-based buffer overflow in psf_memset in common.c in libsndfile 1.0.28 allows remote attackers to cause a denia... | 8.8 | 0.0357 |  |
| [CVE-2018-19662](https://patchblox.com/security/data/cve/CVE-2018-19662.md) | High | libsndfile: libsndfile is a C library for reading and writing files containing sampled sound, such as AIFF, AU, or WAV | 8.1 | 0.0231 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo