kernel: possible kernel oops from user MSS
Published Nov 20, 2010
4.9
MEDIUMCVSS 2.0
EPSS 1.48%
Description
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.
Affected products
No data.
Configuration 1
- < 2.6.37
- 2.6.37
- 2.6.37
Configuration 2
- 11.2
- 11.3
- 11
- 11
- 11
No data.
MRG for RHEL-5
kernel-rt-0:2.6.33.7-rt29.55.el5rt
Fixed · RHSA-2011:0330
Red Hat Enterprise Linux 6
kernel-0:2.6.32-71.18.1.el6
Fixed · RHSA-2011:0283
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.33.7-rt29.55.el5rt | Fixed | RHSA-2011:0330 |
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-71.18.1.el6 | Fixed | RHSA-2011:0283 |
No package ranges for this CVE.
Remediation
Red Hat 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.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.48% (0.01480) | 72.99th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.35% (0.01355) | 67.88th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00092) | 23.97th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 0.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 0.50th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.22% (0.03220) | 84.21th | v2 (v2022.01.01) |
| Sep 10, 2022 | 3.22% (0.03220) | 83.48th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.48% (0.03482) | 83.25th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.48% (0.03482) | 66.34th | v2 (v2022.01.01) |
References (26)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7a1abd08d52fdeddb3e9a5a33f2f15cc6a5674d2 x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://secunia.com/advisories/42778 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/42801 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/42932 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://securityreason.com/securityalert/8111 third-party-advisoryx_refsource_SREASONExploitThird Party Advisory
- http://securityreason.com/securityalert/8123 third-party-advisoryx_refsource_SREASONExploitThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2 x_refsource_CONFIRMBroken Link
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:029 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/11/12/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2010/11/12/4 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.osvdb.org/69241 vdb-entryx_refsource_OSVDBBroken Link
- http://www.securityfocus.com/bid/44830 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.spinics.net/lists/netdev/msg146405.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.spinics.net/lists/netdev/msg146495.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.vupen.com/english/advisories/2011/0012 vdb-entryx_refsource_VUPENThird Party Advisory
- http://www.vupen.com/english/advisories/2011/0124 vdb-entryx_refsource_VUPENThird Party Advisory
- http://www.vupen.com/english/advisories/2011/0298 vdb-entryx_refsource_VUPENThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2010-4165 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=652508 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2010-4165
- https://www.cve.org/CVERecord?id=CVE-2010-4165
Change history (0)
No recorded changes yet.