CVE-2019-19906: High severity Apple macOS Catalina vulnerability

Published 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 sasladdstring in common.c in cyrus-sasl.

Other sources

Mail. An out-of-bounds write issue was addressed with improved bounds checking.

Credit

CVE-2019-19906

Affected Software

64 affected componentsFixes available
debian/cyrus-sasl2<=2.1.27~101-g0780600+dfsg-3, <=2.1.27+dfsg-1
2.1.27+dfsg-1+deb10u12.1.27~101-g0780600+dfsg-3+deb9u12.1.27+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 iOS and macOS=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 iOS and macOS<10.13.6
Apple iOS and macOS>=10.13.0<10.13.6
Apple iOS and macOS>=10.15.0<10.15.6
Apple iOS and macOS=10.13.6
Apple iOS and macOS=10.13.6-security_update_2018-002
Apple iOS and macOS=10.13.6-security_update_2018-003
Apple iOS and macOS=10.13.6-security_update_2019-001
Apple iOS and macOS=10.13.6-security_update_2019-002
Apple iOS and macOS=10.13.6-security_update_2019-003
Apple iOS and macOS=10.13.6-security_update_2019-004
Apple iOS and macOS=10.13.6-security_update_2019-005
Apple iOS and macOS=10.13.6-security_update_2019-006
Apple iOS and macOS=10.13.6-security_update_2019-007
Apple iOS and macOS=10.13.6-security_update_2020-001
Apple iOS and macOS=10.13.6-security_update_2020-002
Apple iOS and macOS=10.13.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apache Bookkeeper=4.12.1
CentOS CentOS=7.0
All of the following
Apache Bookkeeper=4.12.1
CentOS CentOS=7.0
debian/cyrus-sasl2
2.1.27+dfsg-2.1+deb11u12.1.28+dfsg-102.1.28+dfsg1-92.1.28+dfsg1-10

Remediation

Patch Available

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

Patch Available

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

Patch Available

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

Event History

Dec 19, 2019
CVE Published
via MITRE·05:39 PM
Data Sourced
via MITRE·05:39 PM
Description
Data Sourced
via NVD·06:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Feb 21, 2026
Data Sourced
via Ubuntu·12:46 AM
RemedyDescriptionSeverityAffected Software
Data Sourced
via Debian·12:47 AM
DescriptionAffected Software
Data Sourced
via Launchpad·12:47 AM
Description

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2019-19906?

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

2

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

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

3

How does CVE-2019-19906 affect Apple Mojave?

CVE-2019-19906 affects Apple Mojave.

4

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

CVE-2019-19906 affects Apple High Sierra.

5

How does CVE-2019-19906 affect Apple iOS?

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

6

How does CVE-2019-19906 affect Apple iPadOS?

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

7

How can I fix CVE-2019-19906?

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

8

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).

Company

Resources

Contact

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