# CVE-2020-13777: gnutls: The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorit...

CVE-2020-13777 is fixed in 11 products on 1 platform, first by gnutls-bin 3.6.13-2ubuntu1.1, released June 4, 2020. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2020-13777
- Priority: High
- CVSS: 7.4 (Important)
- EPSS: 0.2246
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 4, 2020

## Description

The gnutls packages provide the GNU Transport Layer Security (GnuTLS) library, which implements cryptographic algorithms and protocols such as SSL, TLS, and DTLS.  Security Fix(es):  * gnutls: session resumption works without master key allowing MITM (CVE-2020-13777)  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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | gnutls RHEL 8 | 0:3.6.8-11.el8_2 | [RHSA-2020:2637](https://patchblox.com/security/data/fix/linux/rhsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls ol 8 | 0:3.6.8-11.el8_2 | [ELSA-2020-2637](https://patchblox.com/security/data/fix/linux/elsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-bin Ubuntu 20.04 LTS (focal) | 3.6.13-2ubuntu1.1 | [gnutls-bin 3.6.13-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-gnutls-bin-3.6.13-2ubuntu1.1.md) | Jun 4, 2020 |
| Linux | gnutls-c++ RHEL 8 | 0:3.6.8-11.el8_2 | [RHSA-2020:2637](https://patchblox.com/security/data/fix/linux/rhsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-c++ ol 8 | 0:3.6.8-11.el8_2 | [ELSA-2020-2637](https://patchblox.com/security/data/fix/linux/elsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-dane RHEL 8 | 0:3.6.8-11.el8_2 | [RHSA-2020:2637](https://patchblox.com/security/data/fix/linux/rhsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-dane ol 8 | 0:3.6.8-11.el8_2 | [ELSA-2020-2637](https://patchblox.com/security/data/fix/linux/elsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-devel RHEL 8 | 0:3.6.8-11.el8_2 | [RHSA-2020:2637](https://patchblox.com/security/data/fix/linux/rhsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-devel ol 8 | 0:3.6.8-11.el8_2 | [ELSA-2020-2637](https://patchblox.com/security/data/fix/linux/elsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-utils RHEL 8 | 0:3.6.8-11.el8_2 | [RHSA-2020:2637](https://patchblox.com/security/data/fix/linux/rhsa-2020-2637.md) | Jun 22, 2020 |
| Linux | gnutls-utils ol 8 | 0:3.6.8-11.el8_2 | [ELSA-2020-2637](https://patchblox.com/security/data/fix/linux/elsa-2020-2637.md) | Jun 22, 2020 |
| Linux | guile-gnutls Ubuntu 20.04 LTS (focal) | 3.6.13-2ubuntu1.1 | [guile-gnutls 3.6.13-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-guile-gnutls-3.6.13-2ubuntu1.1.md) | Jun 4, 2020 |
| Linux | libgnutls-dane0 Ubuntu 20.04 LTS (focal) | 3.6.13-2ubuntu1.1 | [libgnutls-dane0 3.6.13-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgnutls-dane0-3.6.13-2ubuntu1.1.md) | Jun 4, 2020 |
| Linux | libgnutls-openssl27 Ubuntu 20.04 LTS (focal) | 3.6.13-2ubuntu1.1 | [libgnutls-openssl27 3.6.13-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgnutls-openssl27-3.6.13-2ubuntu1.1.md) | Jun 4, 2020 |
| Linux | libgnutls30 Ubuntu 20.04 LTS (focal) | 3.6.13-2ubuntu1.1 | [libgnutls30 3.6.13-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgnutls30-3.6.13-2ubuntu1.1.md) | Jun 4, 2020 |
| Linux | libgnutlsxx28 Ubuntu 20.04 LTS (focal) | 3.6.13-2ubuntu1.1 | [libgnutlsxx28 3.6.13-2ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libgnutlsxx28-3.6.13-2ubuntu1.1.md) | Jun 4, 2020 |

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