Linux Kernel net/rds/connection.c null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been declared as problematic. This affects an unknown part of the file net/rds/connection.c. The manipulation results in null pointer dereference. This vulnerability is identified as CVE-2015-6937. There is not any exploit available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel (Operating System) (version now known). Affected is some unknown processing of the file net/rds/connection.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was released 09/14/2015 as Bug 1263139 as confirmed bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is traded as CVE-2015-6937 since 09/14/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 86049 (Debian DLA-310-1 : linux-2.6 security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 296031 (Solaris 11.4 Support Repository Update (SRU) 1.4.0 Missing).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published 7 days after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:

if (trans == NULL) {
   kmem_cache_free(rds_conn_slab, conn);
   conn = ERR_PTR(-ENODEV);
   goto out;
}

The vulnerability is also documented in the databases at X-Force (106362), Tenable (86049), SecurityFocus (BID 76767†) and Vulnerability Center (SBV-52805†). Further details are available at seclists.org. Entries connected to this vulnerability are available at VDB-88376, VDB-125630, VDB-125635 and VDB-125638. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86049
Nessus Name: Debian DLA-310-1 : linux-2.6 security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703364
OpenVAS Name: Debian Security Advisory DSA 3364-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: git.kernel.org

Timelineinfo

09/14/2015 🔍
09/14/2015 +0 days 🔍
09/14/2015 +0 days 🔍
09/14/2015 +0 days 🔍
09/16/2015 +2 days 🔍
09/18/2015 +1 days 🔍
09/21/2015 +3 days 🔍
09/22/2015 +1 days 🔍
10/19/2015 +27 days 🔍
06/15/2022 +2431 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: Bug 1263139
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-6937 (🔍)
GCVE (CVE): GCVE-0-2015-6937
GCVE (VulDB): GCVE-100-77706

OVAL: 🔍

X-Force: 106362 - Linux Kernel connection.c denial of service
SecurityFocus: 76767 - Linux Kernel CVE-2015-6937 Null Pointer Deference Denial of Service Vulnerability
SecurityTracker: 1034453
Vulnerability Center: 52805 - Linux Kernel Remote DoS via a NULL Pointer Dereference in the Kernel\x27s Reliable Datagram Sockets protocol Implementation, High

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/16/2015 10:51
Updated: 06/15/2022 13:33
Changes: 09/16/2015 10:51 (74), 09/21/2018 10:03 (10), 06/15/2022 13:33 (4)
Complete: 🔍
Cache ID: 216:396:103

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