CVE-2010-4165
The MITRE CVE dictionary describes this issue as:
The do_tcp_setsockopt function in net/ipv4/tcp.c in the Linux kernel before 2.6.37-rc2 does not properly restrict TCP_MAXSEG (aka MSS) values, which allows local users to cause a denial of service (OOPS) via a setsockopt call that specifies a small value, leading to a divide-by-zero error or incorrect use of a signed integer.
Find out more about CVE-2010-4165 from the MITRE CVE dictionary dictionary and NIST NVD.
Statement
This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4 and 5 as they did not backport the upstream commit that introduced the issue. This has been addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0283.html and https://rhn.redhat.com/errata/RHSA-2011-0330.html.
CVSS v2 metrics
| Base Score | 4.9 |
|---|---|
| Base Metrics | AV:L/AC:L/Au:N/C:N/I:N/A:C |
| Access Vector | Local |
| 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 |
|---|---|---|
| MRG Grid for RHEL 5 Server (kernel-rt) | RHSA-2011:0330 | 2011-03-10 |
| Red Hat Enterprise Linux 6 (kernel) | RHSA-2011:0283 | 2011-02-22 |
Affected Packages State
| Platform | Package | State |
|---|---|---|
| Red Hat Enterprise MRG 1 | realtime-kernel | Will not fix |
Acknowledgements
Red Hat would like to thank Steve Chen for reporting this issue.CVE description copyright © 2017, The MITRE Corporation