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CVE-2014-6418

26
FAUCET Score

CVE-2014-6418 describes a denial-of-service vulnerability in the Ceph network authentication component (net/ceph/auth_x.c) within the Linux kernel prior to version 3.16.3, affecting various Linux distributions including Canonical Ubuntu and generic Linux kernels. This flaw allows remote attackers to crash a system or potentially achieve other unspecified impacts by sending crafted authentication replies from a Ceph Monitor's IP address. With a CVSS score of 7.1 (High), the attack is network-based and moderately complex, leading to a complete loss of availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.2.64CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.3, < 3.4.105CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.5, < 3.10.55CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.11, < 3.12.29CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 3.13, < 3.14.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.1HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.88%
Probability of exploitation in next 30 days
EPSS Percentile
91.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0488 is in the 58th percentile among its peer group of 8,920 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2014-6418Important

kernel: libceph: missing validation of auth reply

Sep 15, 2014

References

git.kernel.org
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
github.com / torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8
ExploitThird Party Advisory
tracker.ceph.com / issues/8979
ExploitThird Party Advisory
tracker.ceph.com / issues/9561
Third Party Advisory
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.16.3
ExploitVendor Advisory
openwall.com / lists/oss-security/2014/09/15/7
Mailing List
ubuntu.com / usn/USN-2376-1
Third Party Advisory
ubuntu.com / usn/USN-2377-1
Third Party Advisory
ubuntu.com / usn/USN-2378-1
Third Party Advisory
ubuntu.com / usn/USN-2379-1
Third Party Advisory