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...
Status: NEW
Alias: CVE-2017-17740
Product: Security Response
Classification: Other
Component: vulnerability   
(Show other bugs)
Version: unspecified
Hardware: All Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Whiteboard: impact=moderate,public=20171020,repor...
Keywords: Security
Depends On: 1527078 1527079
Blocks: 1527081
TreeView+ depends on / blocked
Reported: 2017-12-18 13:51 UTC by Adam Mariš
Modified: 2018-10-19 21:45 UTC (History)
30 users (show)

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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:


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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