# CVE-2020-8286: curl: The curl packages provide the libcurl library and the curl utility for downloading files from servers using various p...

CVE-2020-8286 is fixed in 7 products on 1 platform, first by curl 7.58.0-2ubuntu3.12, released December 9, 2020. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2020-8286
- Priority: High
- CVSS: 7.5 (Moderate)
- EPSS: 0.0463
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 8, 2020

## Description

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.  Security Fix(es):  * curl: FTP PASV command response can cause curl to connect to arbitrary host (CVE-2020-8284)  * curl: Malicious FTP server can trigger stack overflow when CURLOPT_CHUNK_BGN_FUNCTION is used (CVE-2020-8285)  * curl: Inferior OCSP verification (CVE-2020-8286)  * curl: Expired pointer dereference via multi API with CURLOPT_CONNECT_ONLY option set (CVE-2020-8231)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.  Additional Changes:  For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | curl RHEL 8 | 0:7.61.1-18.el8 | [RHSA-2021:1610](https://patchblox.com/security/data/fix/linux/rhsa-2021-1610.md) | May 18, 2021 |
| Linux | curl Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.12 | [curl 7.58.0-2ubuntu3.12](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-curl-7.58.0-2ubuntu3.12.md) | Dec 9, 2020 |
| Linux | curl Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.4 | [curl 7.68.0-1ubuntu2.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-curl-7.68.0-1ubuntu2.4.md) | Dec 9, 2020 |
| Linux | curl ol 8 | 0:7.61.1-18.el8 | [ELSA-2021-1610](https://patchblox.com/security/data/fix/linux/elsa-2021-1610.md) | May 25, 2021 |
| Linux | libcurl RHEL 8 | 0:7.61.1-18.el8 | [RHSA-2021:1610](https://patchblox.com/security/data/fix/linux/rhsa-2021-1610.md) | May 18, 2021 |
| Linux | libcurl ol 8 | 0:7.61.1-18.el8 | [ELSA-2021-1610](https://patchblox.com/security/data/fix/linux/elsa-2021-1610.md) | May 25, 2021 |
| Linux | libcurl-devel RHEL 8 | 0:7.61.1-18.el8 | [RHSA-2021:1610](https://patchblox.com/security/data/fix/linux/rhsa-2021-1610.md) | May 18, 2021 |
| Linux | libcurl-devel ol 8 | 0:7.61.1-18.el8 | [ELSA-2021-1610](https://patchblox.com/security/data/fix/linux/elsa-2021-1610.md) | May 25, 2021 |
| Linux | libcurl-minimal RHEL 8 | 0:7.61.1-18.el8 | [RHSA-2021:1610](https://patchblox.com/security/data/fix/linux/rhsa-2021-1610.md) | May 18, 2021 |
| Linux | libcurl-minimal ol 8 | 0:7.61.1-18.el8 | [ELSA-2021-1610](https://patchblox.com/security/data/fix/linux/elsa-2021-1610.md) | May 25, 2021 |
| Linux | libcurl3-gnutls Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.12 | [libcurl3-gnutls 7.58.0-2ubuntu3.12](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl3-gnutls-7.58.0-2ubuntu3.12.md) | Dec 9, 2020 |
| Linux | libcurl3-gnutls Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.4 | [libcurl3-gnutls 7.68.0-1ubuntu2.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl3-gnutls-7.68.0-1ubuntu2.4.md) | Dec 9, 2020 |
| Linux | libcurl3-nss Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.12 | [libcurl3-nss 7.58.0-2ubuntu3.12](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl3-nss-7.58.0-2ubuntu3.12.md) | Dec 9, 2020 |
| Linux | libcurl3-nss Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.4 | [libcurl3-nss 7.68.0-1ubuntu2.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl3-nss-7.68.0-1ubuntu2.4.md) | Dec 9, 2020 |
| Linux | libcurl4 Ubuntu 18.04.6 LTS (bionic) | 7.58.0-2ubuntu3.12 | [libcurl4 7.58.0-2ubuntu3.12](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libcurl4-7.58.0-2ubuntu3.12.md) | Dec 9, 2020 |
| Linux | libcurl4 Ubuntu 20.04 LTS (focal) | 7.68.0-1ubuntu2.4 | [libcurl4 7.68.0-1ubuntu2.4](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libcurl4-7.68.0-1ubuntu2.4.md) | Dec 9, 2020 |

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