Public Date:
1007939: CVE-2013-4348 kernel: net: deadloop path in skb_flow_dissect()

The MITRE CVE dictionary describes this issue as:

The skb_flow_dissect function in net/core/flow_dissector.c in the Linux kernel through 3.12 allows remote attackers to cause a denial of service (infinite loop) via a small value in the IHL field of a packet with IPIP encapsulation.

Find out more about CVE-2013-4348 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue does not affect Linux kernel packages as shipped with Red Hat Enterprise Linux 5 and 6. Future Linux kernel updates for Red Hat Enterprise Linux MRG 2 might address this issue.

CVSS v2 metrics

Base Score 7.1
Base Metrics AV:N/AC:M/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2013:1490 2013-10-31

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 kernel Not affected
Red Hat Enterprise Linux 6 kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.


This issue was found by Jason Wang of Red Hat.
Last Modified

CVE description copyright © 2017, The MITRE Corporation