CVE-2010-4165 EXPLOIT
4.9
MEDIUM · CVSS 2.0 · EPSS 1.5% (pctl 73)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 4.9 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
| EPSS | 1.48% — more likely to be exploited than 73% of all CVEs |
| Weakness | CWE-369 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2010-11-22 |
| Last modified | 2026-06-16 |
Affected (5)
| Vendor | Product |
|---|---|
| linux | linux kernel |
| opensuse | opensuse |
| suse | linux enterprise desktop |
| suse | linux enterprise real time extension |
| suse | linux enterprise server |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel < 2.6.37-rc2 - 'TCP_MAXSEG' Kernel Panic (Denial of Service) (2) | 2011-03-10 |
| exploit-db | Linux Kernel 2.6.37 - Local Kernel Denial of Service (1) | 2011-03-02 |
References
- 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
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
- http://secunia.com/advisories/42778
- http://secunia.com/advisories/42801
- http://secunia.com/advisories/42932
- http://securityreason.com/securityalert/8111
- http://securityreason.com/securityalert/8123
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc2
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- http://www.openwall.com/lists/oss-security/2010/11/12/1
- http://www.openwall.com/lists/oss-security/2010/11/12/4
- http://www.osvdb.org/69241
- http://www.securityfocus.com/bid/44830
- http://www.spinics.net/lists/netdev/msg146405.html
- http://www.spinics.net/lists/netdev/msg146495.html
- http://www.vupen.com/english/advisories/2011/0012
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