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CVE-2011-1770
Integer underflow in the dccp_parse_options function (net/dccp/options.c) in the Linux kernel before 2.6.33.14 allows remote attackers to…
High7.5EPSS 4.4%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
Integer underflow in the dccp_parse_options function (net/dccp/options.c) in the Linux kernel before 2.6.33.14 allows remote attackers to cause a denial of service via a Datagram Congestion Control Protocol (DCCP) packet with an invalid feature options length, which triggers a buffer over-read.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 4.4% · top 8.7% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
n/a
- affected n/a
References (10)
- 1025592 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- [linux-kernel] 20110506 [PATCH] dccp: handle invalid feature options length (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 47769 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [linux-kernel] 20110506 Re: [PATCH] dccp: handle invalid feature options length (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=703011 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 44932 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 8286 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- FEDORA-2011-7823 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://www.kernel.org/pub/linux/kernel/v2.6/longterm/v2.6.33/ChangeLog-2.6.33.14 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2011-7551 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2011-1770)Record last updated .