Bug 1255587 (CVE-2015-5185) - CVE-2015-5185 sblim-sfcb: lookupProviders() null pointer dereference
Summary: CVE-2015-5185 sblim-sfcb: lookupProviders() null pointer dereference
Status: NEW
Alias: CVE-2015-5185
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: impact=moderate,public=20150820,repor...
Keywords: Security
Depends On: 1255802
Blocks: 1255588
TreeView+ depends on / blocked
 
Reported: 2015-08-21 04:06 UTC by Kurt Seifried
Modified: 2019-06-08 20:42 UTC (History)
15 users (show)

(edit)
A NULL pointer dereference flaw was found in the way the lookupProviders() function processed certain requests without "className" information. An authenticated remote attacker could use this flaw to cause a denial of service (sfcbd crash) by sending a specially crafted request.
Clone Of:
(edit)
Last Closed:


Attachments (Terms of Use)

Description Kurt Seifried 2015-08-21 04:06:00 UTC
Qinghao Tang of QIHU 360 reports:

The function lookupProviders() in sblim-sfcb of version 1.3.4 and 1.3.18
exists a null dereference vulnerability , a remote attacher can cause a
denial of servise (sblim-sfcb crash) via a crafted packet without
"className" info.


Let`s see how this issue happened,the code below is from
./sblim-sfcb-1.3.18/providerMgr.c :


static UtilList *lookupProviders(long type, char *className, char
*nameSpace,
CMPIStatus *st)
{
UtilList *lst;
UtilHashTable **ht=provHt(type,1);
char *id;
int rc;

_SFCB_ENTER(TRACE_PROVIDERMGR, "lookupProviders");

//here, className should be checked
id=(char*)malloc(strlen(nameSpace)+strlen(className)+8);
strcpy(id,nameSpace);
strcat(id,"|");

...

}

Comment 2 Stefan Cornelius 2015-08-21 15:19:42 UTC
Created sblim-sfcb tracking bugs for this issue:

Affects: fedora-all [bug 1255802]

Comment 5 Fedora Update System 2015-08-25 08:56:33 UTC
sblim-sfcb-1.4.9-4.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2015-14197

Comment 6 Fedora Update System 2015-08-25 08:58:25 UTC
sblim-sfcb-1.4.9-2.fc22 has been submitted as an update to Fedora 22. https://bodhi.fedoraproject.org/updates/FEDORA-2015-14199

Comment 7 Fedora Update System 2015-08-25 09:00:17 UTC
sblim-sfcb-1.4.8-5.fc21 has been submitted as an update to Fedora 21. https://bodhi.fedoraproject.org/updates/FEDORA-2015-14200

Comment 8 Fedora Update System 2015-08-26 04:25:44 UTC
sblim-sfcb-1.4.9-4.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report.\nIf you want to test the update, you can install it with \n su -c 'yum --enablerepo=updates-testing update sblim-sfcb'. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-14197

Comment 9 Fedora Update System 2015-08-26 17:25:03 UTC
sblim-sfcb-1.4.8-5.fc21 has been pushed to the Fedora 21 testing repository. If problems still persist, please make note of it in this bug report.\nIf you want to test the update, you can install it with \n su -c 'yum --enablerepo=updates-testing update sblim-sfcb'. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-14200

Comment 10 Fedora Update System 2015-08-26 17:27:39 UTC
sblim-sfcb-1.4.9-2.fc22 has been pushed to the Fedora 22 testing repository. If problems still persist, please make note of it in this bug report.\nIf you want to test the update, you can install it with \n su -c 'yum --enablerepo=updates-testing update sblim-sfcb'. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-14199

Comment 11 Kurt Seifried 2015-08-28 14:56:30 UTC
Acknowledgement:

Red Hat would like to thank Qinghao Tang (QIHU 360) for reporting this issue.

Comment 12 Stefan Cornelius 2015-09-01 09:04:34 UTC
Statement:

This issue affects the versions of sblim-sfcb as shipped with Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this issue as having Moderate security impact. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 14 Fedora Update System 2015-11-24 19:53:01 UTC
sblim-sfcb-1.4.9-4.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.

Comment 15 Fedora Update System 2015-11-24 22:25:27 UTC
sblim-sfcb-1.4.9-2.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.

Comment 16 Fedora Update System 2015-11-24 22:50:11 UTC
sblim-sfcb-1.4.8-5.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.


Note You need to log in before you can comment on or make changes to this bug.