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
CVE-2017-17740 openldap: contrib/slapd-modules/nops/nops.c attempts to free s...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20171020,repor...
: Security
Depends On: 1527078 1527079
Blocks: 1527081
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Reported: 2017-12-18 08:51 EST by Adam Mariš
Modified: 2018-04-23 06:44 EDT (History)
31 users (show)

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Description Adam Mariš 2017-12-18 08:51:40 EST
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 08:52:25 EST
Created openldap tracking bugs for this issue:

Affects: fedora-all [bug 1527078]
Comment 7 Jason Shepherd 2018-02-18 17:43:44 EST
JBoss EAP 5 is EOL so won't be receiving updates for moderate security issues.
Comment 8 Timothy Walsh 2018-04-23 06:43:54 EDT
JBoss Core Services and Web Server do not provide slapd and don't use the affected module.

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