VULNERABILITY INTELLIGENCE

CVE-2016-6828

CVSS score5.5 MEDIUM
EPSS probability1.18%
CISA KEVNot currently listed
Published2016-10-16
Last modified2026-06-17
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

The tcp_check_send_head function in include/net/tcp.h in the Linux kernel before 4.7.5 does not properly maintain certain SACK state after a failed data copy, which allows local users to cause a denial of service (tcp_xmit_retransmit_queue use-after-free and system crash) via a crafted SACK option.

Weakness classification

  • nvd@nist.gov: CWE-416

Primary references