# CVE-2019-19906: cyrus-sasl: The cyrus-sasl packages contain the Cyrus implementation of Simple Authentication and Security Layer (SASL) CVE-2019-19906 is fixed in 20 products on 1 platform, first by libsasl2-2 2.1.27~101-g0780600+dfsg-3ubuntu2.1, released December 19, 2019. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2019-19906 - Priority: High - CVSS: 7.5 (Moderate) - EPSS: 0.0804 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Dec 19, 2019 ## Description The cyrus-sasl packages contain the Cyrus implementation of Simple Authentication and Security Layer (SASL). SASL is a method for adding authentication support to connection-based protocols. Security Fix(es): * cyrus-sasl: denial of service in _sasl_add_string function (CVE-2019-19906) 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 8.3 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | cyrus-sasl RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-devel RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-devel ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-gs2 RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-gs2 ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-gssapi RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-gssapi ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-ldap RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-ldap ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-lib RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-lib ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-md5 RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-md5 ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-ntlm RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-ntlm ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-plain RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-plain ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-scram RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-scram ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | cyrus-sasl-sql RHEL 8 | 0:2.1.27-5.el8 | [RHSA-2020:4497](https://patchblox.com/security/data/fix/linux/rhsa-2020-4497.md) | Nov 4, 2020 | | Linux | cyrus-sasl-sql ol 8 | 0:2.1.27-5.el8 | [ELSA-2020-4497](https://patchblox.com/security/data/fix/linux/elsa-2020-4497.md) | Nov 10, 2020 | | Linux | libsasl2-2 Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-2 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-2-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | libsasl2-modules Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-modules 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-modules-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | libsasl2-modules-db Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-modules-db 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-modules-db-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | libsasl2-modules-gssapi-heimdal Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-modules-gssapi-heimdal 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-modules-gssapi-heimdal-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | libsasl2-modules-gssapi-mit Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-modules-gssapi-mit 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-modules-gssapi-mit-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | libsasl2-modules-ldap Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-modules-ldap 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-modules-ldap-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | libsasl2-modules-otp Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-modules-otp 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-modules-otp-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | libsasl2-modules-sql Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [libsasl2-modules-sql 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libsasl2-modules-sql-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | | Linux | sasl2-bin Ubuntu 18.04.6 LTS (bionic) | 2.1.27~101-g0780600+dfsg-3ubuntu2.1 | [sasl2-bin 2.1.27~101-g0780600+dfsg-3ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-sasl2-bin-2.1.27-101-g0780600-dfsg-3ubuntu2.1.md) | Dec 19, 2019 | --- Data as of 2026-11-07T18:46:35Z UTC. 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