Homepage
About Snyk

Use After Free Affecting kernel-rt-trace-devel package, versions <0:3.10.0-514.6.1.rt56.429.el7

Severity

high

    Threat Intelligence

    Exploit Maturity
    Mature
    EPSS
    0.05% (16th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-CENTOS7-KERNELRTTRACEDEVEL-2076622
  • published 26 Jul 2021
  • disclosed 15 Aug 2016
Report a new vulnerability Found a mistake?

Introduced: 15 Aug 2016

CVE-2016-6828 Open this link in a new tab
CWE-416 Open this link in a new tab

How to fix?

Upgrade Centos:7 kernel-rt-trace-devel to version 0:3.10.0-514.6.1.rt56.429.el7 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-trace-devel package and not the kernel-rt-trace-devel package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

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.

References

CVSS Scores

version 3.1
Expand this section

Snyk

4.4 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    Low
Expand this section

NVD

5.5 medium
Expand this section

Red Hat

4.4 medium