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Sid 1-43692

Message

OS-LINUX Linux kernel SCTP invalid chunk length denial of service attempt

Summary

The sctpsfootb function in net/sctp/sm_statefuns.c in the Linux kernel before 4.8.8 lacks chunk-length checking for the first chunk, which allows remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data.

Impact

CVSS base score 9.8 CVSS impact score 5.9 CVSS exploitability score 3.9 confidentialityImpact HIGH integrityImpact HIGH availabilityImpact HIGH

CVE-2016-9555:

CVSS base score 9.8

CVSS impact score 5.9

CVSS exploitability score 3.9

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Detailed information

CVE-2016-9555: The sctpsfootb function in net/sctp/sm_statefuns.c in the Linux kernel before 4.8.8 lacks chunk-length checking for the first chunk, which allows remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data.

Affected systems

  • linux linux_kernel 4.8.7

Ease of attack

CVE-2016-9555:

Access Vector

Access Complexity

Authentication

False positives

None known

False negatives

None known

Corrective action

Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

Contributors

  • Talos research team.
  • This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology.
  • For more information see nvd.

Additional References