Bug 1928774 (CVE-2021-27212) - CVE-2021-27212 openldap: Assertion failure in slapd in the issuerAndThisUpdateCheck function
Summary: CVE-2021-27212 openldap: Assertion failure in slapd in the issuerAndThisUpdat...
Keywords:
Status: NEW
Alias: CVE-2021-27212
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1928775 1929142
Blocks: 1928776
TreeView+ depends on / blocked
 
Reported: 2021-02-15 14:33 UTC by Pedro Sampaio
Modified: 2021-02-16 10:04 UTC (History)
7 users (show)

Fixed In Version:
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A flaw was found in openldap. An assertion failure in slapd can occur resulting in a denial of service (daemon exit) via a short timestamp. The highest threat from this vulnerability is to system availability.
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Environment:
Last Closed:


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Description Pedro Sampaio 2021-02-15 14:33:59 UTC
In OpenLDAP through 2.4.57 and 2.5.x through 2.5.1alpha, an assertion failure in slapd can occur in the issuerAndThisUpdateCheck function via a crafted packet, resulting in a denial of service (daemon exit) via a short timestamp. This is related to schema_init.c and checkTime.

References:

https://bugs.openldap.org/show_bug.cgi?id=9454
https://git.openldap.org/openldap/openldap/-/commit/3539fc33212b528c56b716584f2c2994af7c30b0
https://git.openldap.org/openldap/openldap/-/commit/9badb73425a67768c09bcaed1a9c26c684af6c30

Comment 1 Pedro Sampaio 2021-02-15 14:34:31 UTC
Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1928775]


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