CVE-2011-1770
HIGH · CVSS 7.5EPSS 4.4%EU EUVD
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.
Key facts
- CVSS score
- 7.5 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
- CWE-191
- EPSS score
- 4.4% (91th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1769)
- Published
- June 24, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1769 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- fedoraproject / fedora
- fedoraproject / fedora
- linux / linux kernel
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html(Third Party Advisory)
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061366.html(Patch, Third Party Advisory)
- http://marc.info/?l=linux-kernel&m=130468845209036&w=2(Patch, Third Party Advisory)
- http://marc.info/?l=linux-kernel&m=130469305815140&w=2(Patch, Third Party Advisory)
- http://secunia.com/advisories/44932(Third Party Advisory, Vendor Advisory)
- http://securityreason.com/securityalert/8286(Third Party Advisory)
- http://www.kernel.org/pub/linux/kernel/v2.6/longterm/v2.6.33/ChangeLog-2.6.33.14(Release Notes, Vendor Advisory)
- http://www.securityfocus.com/bid/47769(Third Party Advisory, VDB Entry)
- http://www.securitytracker.com/id?1025592(Third Party Advisory, VDB Entry)
- https://bugzilla.redhat.com/show_bug.cgi?id=703011(Issue Tracking, Patch, Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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