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CVE-2016-6828

N/A
Published: October 16, 2016 at 09:00 PM UTC
Updated: June 17, 2026 at 12:51 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v ≤ 4.7.4

References (12)

x_refsource_CONFIRMIssue TrackingPatch
Source: [email protected]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb1fceca22492109be12640d49f5ea5a544c6bb4
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2017-0036.html
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2017-0086.html
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2017-0091.html
Vendor Advisoryx_refsource_REDHAT
Source: [email protected]
http://rhn.redhat.com/errata/RHSA-2017-0113.html
x_refsource_CONFIRMRelease NotesThird Party Advisory
Source: [email protected]
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5
Mailing Listx_refsource_MLISTExploitThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2016/08/15/1
VDB Entryx_refsource_BID
Source: [email protected]
http://www.securityfocus.com/bid/92452

CVSS

4.9MEDIUM[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-416

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