CVE-2013-4387

Medium

net/ipv6/ip6_output.c in the Linux kernel through 3.11.4 does not properly determine the need for UDP Fragmentation Offload (UFO) processing of small packets after the UFO queueing of a large packet, which allows remote attackers to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via network traffic that triggers a large response packet.

Package Linux Kernel
Published 2013-10-10
Last modified 2026-04-29
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

6.1

out of 10
Medium
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
User Interaction
Scope
Confidentiality
Low
Integrity
None
Availability
Vector string
AV:A/AC:L/Au:N/C:N/I:N/A:C

Weakness type

CWE-119

CVE-2013-4387 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2013-4387 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2013-4387?

    CVE-2013-4387 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.1 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2013-4387 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2013-4387?

    CVE-2013-4387 has a CVSS score of 6.1 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:A/AC:L/Au:N/C:N/I:N/A:C .

  • Is there a patch available for CVE-2013-4387?

    No patch is currently available for CVE-2013-4387. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2013-4387 actively exploited?

    No — CVE-2013-4387 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Buffer Overflow (CWE-119)?

    The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →

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