The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-476.
Summary
The pppol2tp_xmit function in drivers/net/pppol2tp.c in the L2TP implementation in the Linux kernel before 2.6.34 does not properly validate certain values associated with an interface, which allows attackers to cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact via vectors related to a routing change.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 2.6.34 | Vulnerable | Linux |
| cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* | 6.06 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:* | 8.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* | 9.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:* | 9.10 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:* | 10.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* | 10.10 | Vulnerable | Canonical |
| cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp1:*:*:*:*:*:* | 11 sp1 | Vulnerable | SUSE |
| cpe:2.3:o:suse:suse_linux_enterprise_high_availability_extension:11:sp1:*:*:*:*:*:* | 11 sp1 | Vulnerable | SUSE |
| cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp1:*:*:*:*:*:* | 11 sp1 | Vulnerable | SUSE |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 2.6.34 Vulnerable ·Linux
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:* Versions 6.06 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:* Versions 8.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:* Versions 9.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:* Versions 9.10 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:* Versions 10.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:* Versions 10.10 Vulnerable ·Canonical
- cpe:2.3:o:suse:suse_linux_enterprise_desktop:11:sp1:*:*:*:*:*:* Versions 11 sp1 Vulnerable ·SUSE
- cpe:2.3:o:suse:suse_linux_enterprise_high_availability_extension:11:sp1:*:*:*:*:*:* Versions 11 sp1 Vulnerable ·SUSE
- cpe:2.3:o:suse:suse_linux_enterprise_server:11:sp1:*:*:*:*:*:* Versions 11 sp1 Vulnerable ·SUSE
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2010-2495
- 2026-10-03 Alias added: GHSA-j4g5-7mr3-h3w3
References
Advisory 8
- [oss-security] 20100623 kernel: l2tp: Fix oops in pppol2tp_xmit
- USN-1000-1
- [oss-security] 20100704 Re: CVE Request: kernel: l2tp: Fix oops in pppol2tp_xmit
- SUSE-SA:2010:033
- https://bugzilla.redhat.com/show_bug.cgi?id=607054
- [oss-security] 20100706 Re: CVE Request: kernel: l2tp: Fix oops in pppol2tp_xmit
- [oss-security] 20100704 Re: kernel: l2tp: Fix oops in pppol2tp_xmit
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34
Sources
- CVE-2010-2495 · CVE Program
- CVE-2010-2495 · NVD
- FIRST EPSS
- GHSA-j4g5-7mr3-h3w3 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-2495 · Red Hat security data · CC BY 4.0
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