Bug 1077884

Summary: ldap/servers/slapd/back-ldbm/dblayer.c: possible minor problem with sscanf
Product: Red Hat Enterprise Linux 7 Reporter: Noriko Hosoi <nhosoi>
Component: 389-ds-baseAssignee: Noriko Hosoi <nhosoi>
Status: CLOSED ERRATA QA Contact: Viktor Ashirov <vashirov>
Severity: unspecified Docs Contact:
Priority: low    
Version: 7.0CC: amsharma, nhosoi, nkinder, rmeggins
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: 389-ds-base-1.3.3.1-1.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-03-05 09:34:04 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Noriko Hosoi 2014-03-18 19:02:12 UTC 
This bug is created as a clone of upstream ticket:
https://fedorahosted.org/389/ticket/47746

[ldap/servers/slapd/back-ldbm/dblayer.c:5294]: (warning) scanf without field width limits can crash with huge input data.

Source code is

    sscanf(thisline,"%[a-z]%c%s",attribute,&delimiter,value);

but

    char value[128], delimiter;

Maybe

    sscanf(thisline,"%[a-z]%c%128s",attribute,&delimiter,value);

would be better code.
Comment 4 Amita Sharma 2015-01-08 08:28:25 UTC 
[root@dhcp201-126 ~]# /usr/lib64/dirsrv/slapd-dhcp201-126/stop-slapd [root@dhcp201-126 ~]# vim /var/lib/dirsrv/slapd-dhcp201-126/db/guardian 
[root@dhcp201-126 ~]# cp /var/lib/dirsrv/slapd-dhcp201-126/db/guardian /var/lib/dirsrv/slapd-dhcp201-126/db/guardian_bk
[root@dhcp201-126 ~]# vim /var/lib/dirsrv/slapd-dhcp201-126/db/guardian 
[root@dhcp201-126 ~]# /usr/lib64/dirsrv/slapd-dhcp201-126/start-slapd 
[root@dhcp201-126 ~]# cat /var/lib/dirsrv/slapd-dhcp201-126/db/guardian
cat: /var/lib/dirsrv/slapd-dhcp201-126/db/guardian: No such file or directory
[root@dhcp201-126 ~]# /usr/lib64/dirsrv/slapd-dhcp201-126/stop-slapd
[root@dhcp201-126 ~]# cat /var/lib/dirsrv/slapd-dhcp201-126/db/guardian
cachesize:5120000
ncache:0
version:5

Hence VERIFIED.
Comment 6 errata-xmlrpc 2015-03-05 09:34:04 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2015-0416.html