kernel: L2TP send buffer allocation size overflows
Published Jan 7, 2011
6.9
MEDIUMCVSS 2.0
EPSS 0.53%
Description
Multiple integer overflows in the (1) pppol2tp_sendmsg function in net/l2tp/l2tp_ppp.c, and the (2) l2tp_ip_sendmsg function in net/l2tp/l2tp_ip.c, in the PPPoL2TP and IPoL2TP implementations in the Linux kernel before 2.6.36.2 allow local users to cause a denial of service (heap memory corruption and panic) or possibly gain privileges via a crafted sendto call.
Affected products
No data.
Configuration 1
- < 2.6.36.2
Configuration 2
- 11.2
- 10
- 11
- 9
- 10
- 11
- 10
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-0:2.6.32-71.14.1.el6
Fixed · RHSA-2011:0007
| 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-0:2.6.32-71.14.1.el6 | Fixed | RHSA-2011:0007 |
No package ranges for this CVE.
Remediation
Red Hat statement
The Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and 5 did not include L2TP functionality, and therefore are not affected by this issue. This has been addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0007.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:M/Au:N/C:C/I:C/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 1, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00529) | 42.65th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.53% (0.00529) | 40.31th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.16% (0.00162) | 34.62th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (31)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=253eacc070b114c2ec1f81b067d2fed7305467b0 x_refsource_CONFIRM
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8acfe468b0384e834a303f08ebc4953d72fb690a x_refsource_CONFIRM
- 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/2011-01/msg00007.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2010/11/10/16 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
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- http://openwall.com/lists/oss-security/2010/11/24/12 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://openwall.com/lists/oss-security/2010/11/24/4 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
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- http://openwall.com/lists/oss-security/2010/11/24/6 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://secunia.com/advisories/42801 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
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- http://secunia.com/advisories/42932 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
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- http://secunia.com/advisories/43291 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2 x_refsource_CONFIRMBroken Link
- http://www.redhat.com/support/errata/RHSA-2011-0007.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.securityfocus.com/bid/44762 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.spinics.net/lists/netdev/msg145248.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.spinics.net/lists/netdev/msg145673.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/2011/0213 vdb-entryx_refsource_VUPENThird Party Advisory
- http://www.vupen.com/english/advisories/2011/0375 vdb-entryx_refsource_VUPENThird Party Advisory
- http://xorl.wordpress.com/2010/11/11/cve-2010-4160-linux-kernel-l2tp-integer-overflows/ x_refsource_MISCExploitThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2010-4160 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=651892 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2010-4160
- https://www.cve.org/CVERecord?id=CVE-2010-4160
Change history (0)
No recorded changes yet.