CVE-2016-9555

Published: 27 November 2016

The sctp_sf_ootb 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.

From the Ubuntu security team

Andrey Konovalov discovered that the SCTP implementation in the Linux kernel improperly handled validation of incoming data. A remote attacker could use this to cause a denial of service (system crash).

Priority

Medium

CVSS 3 base score: 9.8

Status

Notes

android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

References

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9555
• https://ubuntu.com/security/notices/USN-3161-1
• https://ubuntu.com/security/notices/USN-3161-2
• https://ubuntu.com/security/notices/USN-3161-3
• https://ubuntu.com/security/notices/USN-3161-4
• https://ubuntu.com/security/notices/USN-3162-1
• https://ubuntu.com/security/notices/USN-3162-2
• https://ubuntu.com/security/notices/USN-3187-1
• https://ubuntu.com/security/notices/USN-3188-1
• https://ubuntu.com/security/notices/USN-3188-2
• https://ubuntu.com/security/notices/USN-3187-2
• NVD
• Launchpad
• Debian

Bugs