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Vulnerability record · CVE-2010-4165 · published 22 November 2010

CVE-2010-4165: Linux kernel divide by zero vulnerability

Linux · Linux Kernel

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.

4.9 CVSS 2.0 Medium EPSS 1.5% · top 26.8% CWE-369 · Divide by zero
4.9CVSS 2.0 base score
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
46References, 4 tagged exploit
16 Jun 2026Last modified by NVD

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.

AV:L/AC:L/Au:N/C:N/I:N/A:C

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7a1abd08d52fdeddb3e9a5a33f2f15cc6a5674d2
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html Mailing ListThird Party Advisory
http://secunia.com/advisories/42778 Third Party Advisory
http://secunia.com/advisories/42801 Third Party Advisory
http://secunia.com/advisories/42932 Third Party Advisory
http://securityreason.com/securityalert/8111 ExploitThird Party Advisory
http://securityreason.com/securityalert/8123 ExploitThird Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2 Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2011:029 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:051 Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/11/12/1 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2010/11/12/4 Mailing ListPatchThird Party Advisory
http://www.osvdb.org/69241 Broken Link
http://www.securityfocus.com/bid/44830 Third Party AdvisoryVDB Entry
http://www.spinics.net/lists/netdev/msg146405.html Mailing ListPatchThird Party Advisory
http://www.spinics.net/lists/netdev/msg146495.html Mailing ListPatchThird Party Advisory
http://www.vupen.com/english/advisories/2011/0012 Third Party Advisory
http://www.vupen.com/english/advisories/2011/0124 Third Party Advisory
http://www.vupen.com/english/advisories/2011/0298 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=652508 Issue TrackingPatchThird Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7a1abd08d52fdeddb3e9a5a33f2f15cc6a5674d2
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html Mailing ListThird Party Advisory
http://secunia.com/advisories/42778 Third Party Advisory
http://secunia.com/advisories/42801 Third Party Advisory
http://secunia.com/advisories/42932 Third Party Advisory
http://securityreason.com/securityalert/8111 ExploitThird Party Advisory
http://securityreason.com/securityalert/8123 ExploitThird Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2 Broken Link
http://www.mandriva.com/security/advisories?name=MDVSA-2011:029 Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:051 Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/11/12/1 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2010/11/12/4 Mailing ListPatchThird Party Advisory
http://www.osvdb.org/69241 Broken Link
http://www.securityfocus.com/bid/44830 Third Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2010-4165), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.