Bug 1630668 (CVE-2018-14648) - CVE-2018-14648 389-ds-base: Mishandled search requests in servers/slapd/search.c:do_search() allows for denial of service
Summary: CVE-2018-14648 389-ds-base: Mishandled search requests in servers/slapd/searc...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2018-14648
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: 1624004 1631695 1631696 1633740
Blocks: 1630669
TreeView+ depends on / blocked
 
Reported: 2018-09-19 03:46 UTC by Sam Fowler
Modified: 2021-02-16 23:02 UTC (History)
11 users (show)

Fixed In Version: 389-ds-base 1.4.0.18, 389-ds-base 1.3.8.10
Doc Type: If docs needed, set a value
Doc Text:
It was found that a specially crafted search query could lead to excessive CPU consumption in the do_search() function. An unauthenticated attacker could use this flaw to provoke a denial of service.
Clone Of:
Environment:
Last Closed: 2019-06-10 10:38:20 UTC
Embargoed:

Attachments (Terms of Use)
fix for v1.3.8.4 (1/2) (4.03 KB, patch)
2018-10-09 07:38 UTC, Cedric Buissart 		no flags Details | Diff
additional regression fix for v1.3.8.4 (2/2) (1.65 KB, patch)
2018-10-09 07:39 UTC, Cedric Buissart 		no flags Details | Diff
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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:3127 0 None None None 2018-10-30 07:42:24 UTC
Red Hat Product Errata RHSA-2018:3507 0 None None None 2018-11-06 15:33:43 UTC

Description Sam Fowler 2018-09-19 03:46:12 UTC 
389 Directory Server is vulnerable to search queries with malformed values in the servers/slapd/search.c:do_search() function. A malicious client could exploit this by sending crafted queries in a loop to cause a denial of service.
Comment 3 Cedric Buissart 2018-09-21 10:01:48 UTC 
Created 389-ds-base tracking bugs for this issue:

Affects: fedora-all [bug 1631695]
Comment 5 Salvatore Bonaccorso 2018-09-28 20:11:18 UTC 
Sam, is there a upstream issue reference for this issue (and a commit reference)?
Comment 6 Yogendra Jog 2018-10-01 14:35:12 UTC 
Hi,

Correcting the needinfo.  The assigned engineer is on leave and you should get an update early next week.

Regards
YOG.
Comment 7 Cedric Buissart 2018-10-09 07:38:20 UTC 
Created attachment 1491956 [details]
fix for v1.3.8.4 (1/2)
Comment 8 Cedric Buissart 2018-10-09 07:39:24 UTC 
Created attachment 1491958 [details]
additional regression fix for v1.3.8.4 (2/2)
Comment 9 Cedric Buissart 2018-10-09 07:41:45 UTC 
Hi Salvatore,

The fix has not been pushed upstream yet. You will find a proposed fix for v1.3.8.4 attachment (2 patches)
Comment 11 Cedric Buissart 2018-10-10 09:18:56 UTC 
External References:

https://pagure.io/389-ds-base/issue/49969
Comment 12 errata-xmlrpc 2018-10-30 07:42:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3127 https://access.redhat.com/errata/RHSA-2018:3127
Comment 13 errata-xmlrpc 2018-11-06 15:33:35 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7.5 Extended Update Support

Via RHSA-2018:3507 https://access.redhat.com/errata/RHSA-2018:3507
Comment 14 Cedric Buissart 2019-12-02 08:02:55 UTC 
Patches are attached to this bugzilla.

For upstream fixes:

Fixed in 1.4.0.18 :
https://pagure.io/389-ds-base/c/a49bd03d6
https://pagure.io/389-ds-base/c/a6369790c


For older branches:
* 1.3.7 : 
https://pagure.io/389-ds-base/c/c8ec6e58c
https://pagure.io/389-ds-base/c/722a6f867

* 1.3.8 : 
https://pagure.io/389-ds-base/c/5fc374b43
https://pagure.io/389-ds-base/c/bdb1af66c
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