CVE-2015-1421

Impact:
Important
Public Date:
2015-01-22
CWE:
CWE-416
Bugzilla:
1196581: CVE-2015-1421 kernel: net: slab corruption from use after free on INIT collisions
A use-after-free flaw was found in the way the Linux kernel's SCTP implementation handled authentication key reference counting during INIT collisions. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.

Find out more about CVE-2015-1421 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5.

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

CVSS v2 metrics

Base Score 7.1
Base Metrics AV:N/AC:M/Au:N/C:N/I:N/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (kernel) RHSA-2015:0864 2015-04-21
Red Hat Enterprise Linux Advanced Update Support 6.2 (kernel) RHSA-2015:1082 2015-06-09
Red Hat Enterprise Linux Advanced Update Support 6.4 (kernel) RHSA-2015:1030 2015-05-27
MRG Grid for RHEL 6 Server v.2 (kernel-rt) RHSA-2015:0751 2015-03-30
Red Hat Enterprise Linux Extended Update Support 6.5 (kernel) RHSA-2015:0782 2015-04-07
Red Hat Enterprise Linux 7 (kernel) RHSA-2015:0726 2015-03-26
Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) RHSA-2015:0727 2015-03-26

Affected Packages State

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

Acknowledgements

This issue was discovered by Sun Baoliang of Red Hat.

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