Red Hat update for kernel



Published: 2017-02-23
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-6074
CWE-ID CWE-399
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux Server - Extended Update Support
Operating systems & Components / Operating system

Red Hat Enterprise Linux EUS Compute Node
Operating systems & Components / Operating system

kernel (Red Hat package)
Operating systems & Components / Operating system package or component

Vendor Red Hat Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Resource management error

EUVDB-ID: #VU5869

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2017-6074

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: Yes

Description

The vulnerability allows a local user to cause kernel panic.

The vulnerability exists due to invalid free in the dccp_rcv_state_process() function in net/dccp/input.c file in the Linux kernel through 4.9.11 when processing DCCP_PKT_REQUEST packet data structures in the LISTEN state. A local user can use userspace application to make an IPV6_RECVPKTINFO setsockopt system call and cause kernel panic.

Successful exploitation of this vulnerability may result in denial of service condition.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Red Hat Enterprise Linux for Power, big endian - Extended Update Support: 6.7

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support: 6.7

Red Hat Enterprise Linux Server - Extended Update Support: 6.7

kernel (Red Hat package): 2.6.32-71.7.1.el6 - 2.6.32-573.38.1.el6

Red Hat Enterprise Linux EUS Compute Node: 6.7

:


CPE2.3 External links

http://access.redhat.com/errata/RHSA-2017:0316

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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