CVE-2011-1770

moderate-risk

Published 2011-06-24

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.

Do I need to act?

5.0% chance of exploitation in next 30 days

EPSS score — moderate exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (3)

Linux Kernel

Fedora

Affected Vendors

Fedoraproject Linux

References (20)

Third Party Advisory http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html

Patch http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061366.html

Patch http://marc.info/?l=linux-kernel&m=130468845209036&w=2

Patch http://marc.info/?l=linux-kernel&m=130469305815140&w=2

Third Party Advisory http://secunia.com/advisories/44932

Third Party Advisory http://securityreason.com/securityalert/8286

Release Notes http://www.kernel.org/pub/linux/kernel/v2.6/longterm/v2.6.33/ChangeLog-2.6.33.14

Third Party Advisory http://www.securityfocus.com/bid/47769

Third Party Advisory http://www.securitytracker.com/id?1025592

Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=703011