CVE-2012-2744
The MITRE CVE dictionary describes this issue as:
net/ipv6/netfilter/nf_conntrack_reasm.c in the Linux kernel before 2.6.34, when the nf_conntrack_ipv6 module is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via certain types of fragmented IPv6 packets.
Find out more about CVE-2012-2744 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5 as they did not include support for netfilter's ipv6 connection tracking module. This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux MRG as they already contain the upstream commit that fixes this issue.
CVSS v2 metrics
| Base Score | 7.8 |
|---|---|
| Base Metrics | AV:N/AC:L/Au:N/C:N/I:N/A:C |
| Access Vector | Network |
| Access Complexity | Low |
| 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-2012:1064 | 2012-07-10 |
| Red Hat Enterprise Linux Server EUS (v. 6.0) (kernel) | RHSA-2012:1114 | 2012-07-24 |
| Red Hat Enterprise Linux Server EUS (v. 6.1) (kernel) | RHSA-2012:1148 | 2012-08-07 |
| Red Hat Enterprise Linux Extended Update Support 6.2 (kernel) | RHSA-2012:1129 | 2012-07-31 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected |
| Red Hat Enterprise Linux 5 | kernel | Not affected |
Acknowledgements
Red Hat would like to thank Antonios Atlasis working with Beyond Security's SecuriTeam Secure Disclosure program for reporting this issue.CVE description copyright © 2017, The MITRE Corporation