What’s Vulnerable › Vulnerabilities

CVE-2014-6418

• Severity: high (CVSS 7.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2014-09-28 · updated 2026-06-17
• Weakness: CWE-399

Description

net/ceph/auth_x.c in Ceph, as used in the Linux kernel before 3.16.3, does not properly validate auth replies, which allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via crafted data from the IP address of a Ceph Monitor.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04
• Linux kernel: before 3.2.64; from 3.3 before 3.4.105; from 3.5 before 3.10.55; from 3.11 before 3.12.29; from 3.13 before 3.14.19; from 3.15 before 3.16.3 — fixed in 3.10.55, 3.12.29, 3.14.19, 3.16.3, 3.2.64, 3.4.105

How to fix

Upgrade to a fixed version: Linux kernel 3.10.55, 3.12.29, 3.14.19, 3.16.3. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c27a3e4d667fdcad3db7b104f75659478e0c68d8
• http://tracker.ceph.com/issues/8979
• http://tracker.ceph.com/issues/9561
• http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.16.3
• http://www.openwall.com/lists/oss-security/2014/09/15/7
• http://www.ubuntu.com/usn/USN-2376-1
• http://www.ubuntu.com/usn/USN-2377-1
• http://www.ubuntu.com/usn/USN-2378-1
• http://www.ubuntu.com/usn/USN-2379-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1142073
• https://github.com/torvalds/linux/commit/c27a3e4d667fdcad3db7b104f75659478e0c68d8
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c27a3e4d667fdcad3db7b104f75659478e0c68d8

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