CVE-2019-19906

Publication date 19 December 2019

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
cyrus-sasl2 19.10 eoan
Fixed 2.1.27+dfsg-1ubuntu0.1
19.04 disco Ignored end of life
18.04 LTS bionic
Fixed 2.1.27~101-g0780600+dfsg-3ubuntu2.1
16.04 LTS xenial
Fixed 2.1.26.dfsg1-14ubuntu0.2
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-4256-1
    • Cyrus SASL vulnerability
    • 28 January 2020

Other references