The DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later does not verify the upper bounds of the optlen value, which allows local users running on certain architectures to read kernel memory or cause a denial of service (oops), a related issue to CVE-2007-1730
Published Mar 28, 2007
7.2
HIGHCVSS 2.0
EPSS 0.73%
Description
The DCCP support in the do_dccp_getsockopt function in net/dccp/proto.c in Linux kernel 2.6.20 and later does not verify the upper bounds of the optlen value, which allows local users running on certain architectures to read kernel memory or cause a denial of service (oops), a related issue to CVE-2007-1730.
Affected products
No data.
- 2.6.20
- 2.6.20.1
- 2.6.20.2
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. This issue did not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.
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: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 3, 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 3, 2026 | 0.73% (0.00730) | 52.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.73% (0.00730) | 49.29th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.21% (0.00205) | 40.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00950) | 32.28th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.95% (0.00950) | 30.63th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00950) | 28.61th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00950) | 13.46th | v2 (v2022.01.01) |
No CWE recorded.
References (8)
- http://securityreason.com/securityalert/2511 third-party-advisoryx_refsource_SREASON
- http://www.securityfocus.com/archive/1/463969/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securitytracker.com/id?1017820 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2007-1734 Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/33274 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/43321 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2007-1734
- https://www.cve.org/CVERecord?id=CVE-2007-1734
| Link | Providers | Tags |
|---|---|---|
| http://securityreason.com/securityalert/2511 | third-party-advisoryx_refsource_SREASON | |
| http://www.securityfocus.com/archive/1/463969/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securitytracker.com/id?1017820 | vdb-entryx_refsource_SECTRACK | |
| https://access.redhat.com/security/cve/CVE-2007-1734 | Vendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/33274 | vdb-entryx_refsource_XF | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/43321 | vdb-entryx_refsource_XF | |
| https://nvd.nist.gov/vuln/detail/CVE-2007-1734 | ||
| https://www.cve.org/CVERecord?id=CVE-2007-1734 |
Change history (0)
No recorded changes yet.