# ELSA-2020-5663: Security update for 9 packages

ELSA-2020-5663, released April 27, 2020, fixes 6 CVEs across 9 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/elsa-2020-5663
- Platform: Linux
- Released: Apr 27, 2020
- Priority: High (Closes CVE-2020-8835, high severity)
- CVEs: 6, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2020-5663.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel-uek](https://patchblox.com/security/data/product/linux/kernel-uek.md) | ol 8 | 0:5.4.17-2011.1.2.el8uek |
| [kernel-uek-debug](https://patchblox.com/security/data/product/linux/kernel-uek-debug.md) | ol 8 | 0:5.4.17-2011.1.2.el8uek |
| [kernel-uek-debug-devel](https://patchblox.com/security/data/product/linux/kernel-uek-debug-devel.md) | ol 8 | 0:5.4.17-2011.1.2.el8uek |
| [kernel-uek-devel](https://patchblox.com/security/data/product/linux/kernel-uek-devel.md) | ol 8 | 0:5.4.17-2011.1.2.el8uek |
| [kernel-uek-doc](https://patchblox.com/security/data/product/linux/kernel-uek-doc.md) | ol 8 | 0:5.4.17-2011.1.2.el8uek |
| [kernel-uek-tools](https://patchblox.com/security/data/product/linux/kernel-uek-tools.md) | ol 8 | 0:5.4.17-2011.1.2.el7uek |
| [kernel-uek-tools-libs](https://patchblox.com/security/data/product/linux/kernel-uek-tools-libs.md) | ol 8 | 0:5.4.17-2011.1.2.el7uek |
| [perf](https://patchblox.com/security/data/product/linux/perf.md) | ol 8 | 0:5.4.17-2011.1.2.el7uek |
| [python-perf](https://patchblox.com/security/data/product/linux/python-perf.md) | ol 8 | 0:5.4.17-2011.1.2.el7uek |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2020-8835](https://patchblox.com/security/data/cve/CVE-2020-8835.md) | High | kernel-uek: [5.4.17-2011.1.2] - ctf: discard CTF from the vDSO (Nick Alcock)  [Orabug: 31194036]  [5.4.17-2011.1.1] - slcan: Don'... | 7.8 | 0.0601 |  |
| [CVE-2019-19768](https://patchblox.com/security/data/cve/CVE-2019-19768.md) | High | kernel-rt: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high... | 7.5 | 0.0415 |  |
| [CVE-2020-9383](https://patchblox.com/security/data/cve/CVE-2020-9383.md) | High | kernel-uek: [5.4.17-2011.1.2] - ctf: discard CTF from the vDSO (Nick Alcock)  [Orabug: 31194036]  [5.4.17-2011.1.1] - slcan: Don'... | 7.1 | 0.0076 |  |
| [CVE-2020-10942](https://patchblox.com/security/data/cve/CVE-2020-10942.md) | Routine | kernel-zfcpdump-modules-extra: The kernel packages contain the Linux kernel, the core of any Linux operating system.  Security Fix(es):  * kernel: u... | 5.3 | 0.0100 |  |
| [CVE-2020-11494](https://patchblox.com/security/data/cve/CVE-2020-11494.md) | Routine | kernel-uek: [5.4.17-2011.1.2] - ctf: discard CTF from the vDSO (Nick Alcock)  [Orabug: 31194036]  [5.4.17-2011.1.1] - slcan: Don'... | 4.4 | 0.0072 |  |
| [CVE-2020-8992](https://patchblox.com/security/data/cve/CVE-2020-8992.md) | Routine | kernel-uek: [5.4.17-2011.1.2] - ctf: discard CTF from the vDSO (Nick Alcock)  [Orabug: 31194036]  [5.4.17-2011.1.1] - slcan: Don'... | 5.5 | 0.0042 |  |

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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