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CVE-2015-6937

16
FAUCET Score

CVE-2015-6937 is a denial-of-service vulnerability in the Linux kernel (through version 4.2.3), specifically affecting the __rds_conn_create function, which impacts various Canonical and Debian Linux distributions. An attacker can trigger a NULL pointer dereference and system crash by manipulating an improperly bound socket. With a CVSS score of 4.9 (AV:L/AC:L/Au:N/C:N/I:N/A:C), this vulnerability requires local access and low attack complexity, leading to a high impact on availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

AV:L/AC:L/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
41.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 77th percentile among its peer group of 3,052 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2015-6937Moderate

kernel: net: rds: NULL pointer dereference in net/rds/connection.c

Sep 14, 2015

References

git.kernel.org / cgit/linux/kernel/git/torvalds/linux.git/commit
PatchVendor Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-October/168447.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-October/168539.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2015-September/167358.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-10/msg00009.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-11/msg00035.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-12/msg00026.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-12/msg00031.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00007.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00009.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00013.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00017.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00018.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00019.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00020.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00021.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00022.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-02/msg00034.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00038.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2015-12/msg00039.html
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/74e98eb085889b0d2d4908f59f6e00026063014f
PatchThird Party Advisory
debian.org / security/2015/dsa-3364
Third Party Advisory
openwall.com / lists/oss-security/2015/09/14/3
Mailing ListThird Party Advisory
oracle.com / technetwork/security-advisory/cpuoct2018-4428296.html
oracle.com / technetwork/topics/security/linuxbulletinoct2015-2719645.html
Third Party Advisory
securityfocus.com / bid/76767
Third Party AdvisoryVDB Entry
securitytracker.com / id/1034453
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2773-1
Third Party Advisory
ubuntu.com / usn/USN-2774-1
Third Party Advisory
ubuntu.com / usn/USN-2777-1
Third Party Advisory