high
7.5
CWE
193 787
Advisory Published
Updated

CVE-2019-19906

First published: Thu Dec 19 2019(Updated: )

cyrus-sasl (aka Cyrus SASL) 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. The OpenLDAP crash is ultimately caused by an off-by-one error in _sasl_add_string in common.c in cyrus-sasl.

Credit: CVE-2019-19906 CVE-2019-19906 cve@mitre.org

Affected SoftwareAffected VersionHow to fix
debian/cyrus-sasl2
2.1.27+dfsg-1+deb10u2
2.1.27+dfsg-2.1+deb11u1
2.1.28+dfsg-10
2.1.28+dfsg1-3
debian/cyrus-sasl2<=2.1.27~101-g0780600+dfsg-3<=2.1.27+dfsg-1
2.1.27+dfsg-1+deb10u1
2.1.27~101-g0780600+dfsg-3+deb9u1
2.1.27+dfsg-2
Apple macOS Catalina<10.15.6
10.15.6
Apple Mojave
Apple High Sierra
Apple iOS<13.6
13.6
Apple iPadOS<13.6
13.6
Cyrusimap Cyrus-sasl<2.1.28
Debian Debian Linux=8.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=19.10
Fedoraproject Fedora=31
Fedoraproject Fedora=32
Redhat Jboss Enterprise Web Server=2.0.0
Apple Mac OS X=10.14.6
Redhat Enterprise Linux=5.0
Redhat Enterprise Linux=6.0
Redhat Enterprise Linux=7.0
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Eus=8.4
Redhat Enterprise Linux For Ibm Z Systems=8.0
Redhat Enterprise Linux For Ibm Z Systems Eus=8.4
Redhat Enterprise Linux For Power Little Endian=8.0
Redhat Enterprise Linux For Power Little Endian Eus=8.4
Redhat Enterprise Linux Server Aus=8.4
Redhat Enterprise Linux Server For Power Little Endian Update Services For Sap Solutions=8.4
Redhat Enterprise Linux Server Tus=8.4
Redhat Enterprise Linux Server Update Services For Sap Solutions=8.4
Apple iPadOS=13.6
Apple iPhone OS=13.6
Apple Mac OS X<10.13.6
Apple Mac OS X>=10.13.0<10.13.6
Apple Mac OS X>=10.15.0<10.15.6
Apple Mac OS X=10.13.6
Apple Mac OS X=10.13.6-security_update_2018-002
Apple Mac OS X=10.13.6-security_update_2018-003
Apple Mac OS X=10.13.6-security_update_2019-001
Apple Mac OS X=10.13.6-security_update_2019-002
Apple Mac OS X=10.13.6-security_update_2019-003
Apple Mac OS X=10.13.6-security_update_2019-004
Apple Mac OS X=10.13.6-security_update_2019-005
Apple Mac OS X=10.13.6-security_update_2019-006
Apple Mac OS X=10.13.6-security_update_2019-007
Apple Mac OS X=10.13.6-security_update_2020-001
Apple Mac OS X=10.13.6-security_update_2020-002
Apple Mac OS X=10.13.6-security_update_2020-003
Apple Mac OS X=10.14.6-security_update_2019-001
Apple Mac OS X=10.14.6-security_update_2019-002
Apple Mac OS X=10.14.6-security_update_2019-004
Apple Mac OS X=10.14.6-security_update_2019-005
Apple Mac OS X=10.14.6-security_update_2019-006
Apple Mac OS X=10.14.6-security_update_2019-007
Apple Mac OS X=10.14.6-security_update_2020-001
Apple Mac OS X=10.14.6-security_update_2020-002
Apple Mac OS X=10.14.6-security_update_2020-003
Apache Bookkeeper=4.12.1
Centos Centos=7.0

Remedy

http://www.openwall.com/lists/oss-security/2022/02/23/4

Remedy

https://github.com/cyrusimap/cyrus-sasl/issues/587

Remedy

https://usn.ubuntu.com/4256-1/

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is CVE-2019-19906?

    CVE-2019-19906 is a vulnerability in Mail that allows for an out-of-bounds write issue.

  • How does CVE-2019-19906 affect Apple macOS Catalina?

    CVE-2019-19906 affects Apple macOS Catalina version up to and excluding 10.15.6.

  • How does CVE-2019-19906 affect Apple Mojave?

    CVE-2019-19906 affects Apple Mojave.

  • How does CVE-2019-19906 affect Apple High Sierra?

    CVE-2019-19906 affects Apple High Sierra.

  • How does CVE-2019-19906 affect Apple iOS?

    CVE-2019-19906 affects Apple iOS version up to and excluding 13.6.

  • How does CVE-2019-19906 affect Apple iPadOS?

    CVE-2019-19906 affects Apple iPadOS version up to and excluding 13.6.

  • How can I fix CVE-2019-19906?

    To fix CVE-2019-19906, update your system to the latest version of the affected software.

  • Where can I find more information about CVE-2019-19906?

    You can find more information about CVE-2019-19906 in the references provided by Apple: [Reference 1](https://support.apple.com/en-us/HT211289) and [Reference 2](https://support.apple.com/en-us/HT211288).

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