CVE-2017-2647

Impact:
Important
Public Date:
2017-03-21
CWE:
CWE-476
Bugzilla:
1428353: CVE-2017-2647 kernel: Null pointer dereference in search_keyring
A null pointer dereference vulnerability was found that can be triggered in keyring_search_iterator in keyring.c if type->match is NULL by unprivileged local user was found. It is possible that an attacker could crash the system or escalate privileges using this vulnerability.

Find out more about CVE-2017-2647 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 as the code which can trigger the flaw is not present in the products listed.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 6, 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 7.8
CVSS3 Base Metrics CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity Impact High
Availability Impact High

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 realtime-kernel Affected
Red Hat Enterprise Linux 7 kernel-rt Affected
Red Hat Enterprise Linux 7 kernel Affected
Red Hat Enterprise Linux 6 kernel Affected
Red Hat Enterprise Linux 5 kernel Not affected

Acknowledgements

Red Hat would like to thank Igor Redko (Virtuozzo) and Andrey Ryabinin (Virtuozzo) for reporting this issue.

Mitigation

Last Modified