Bug 1527076 (CVE-2017-17740) - CVE-2017-17740 openldap: contrib/slapd-modules/nops/nops.c attempts to free stack buffer allowing remote attackers to cause a denial of service
Summary: CVE-2017-17740 openldap: contrib/slapd-modules/nops/nops.c attempts to free s...
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2017-17740
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: 1527078 Engineering1527079
Blocks: Embargoed1527081
TreeView+ depends on / blocked
 
Reported: 2017-12-18 13:51 UTC by Adam Mariš
Modified: 2019-09-29 14:28 UTC (History)
29 users (show)

Fixed In Version:
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Last Closed: 2019-06-08 03:34:37 UTC

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Description Adam Mariš 2017-12-18 13:51:40 UTC 
contrib/slapd-modules/nops/nops.c in OpenLDAP through 2.4.45, when both the nops module and the memberof overlay are enabled, attempts to free a buffer that was allocated on the stack, which allows remote attackers to cause a denial of service (slapd crash) via a member MODDN operation.

Bug report:

https://www.openldap.org/its/index.cgi/Incoming?id=8759
Comment 1 Adam Mariš 2017-12-18 13:52:25 UTC 
Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1527078]
Comment 7 Jason Shepherd 2018-02-18 22:43:44 UTC 
JBoss EAP 5 is EOL so won't be receiving updates for moderate security issues.
Comment 8 Timothy Walsh 2018-04-23 10:43:54 UTC 
JBoss Core Services and Web Server do not provide slapd and don't use the affected module.
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