CVE-2011-1770

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 4.96% Top 15%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory secunia.com Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id?1025592 third party advisory vdb entry
http://marc.info/?l=linux-kernel&m=130468845209036&w=2 patch mailing list third party advisory
http://www.securityfocus.com/bid/47769 third party advisory vdb entry
http://marc.info/?l=linux-kernel&m=130469305815140&w=2 patch mailing list third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=703011 patch third party advisory issue tracking
http://secunia.com/advisories/44932 third party advisory vendor advisory
http://securityreason.com/securityalert/8286 third party advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html third party advisory vendor advisory
http://www.kernel.org/pub/linux/kernel/v2.6/longterm/v2.6.33/ChangeLog-2.6.33.14 release notes vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061366.html patch vendor advisory third party advisory

Frequently Asked Questions

What is the severity of CVE-2011-1770?
CVE-2011-1770 has been scored as a high severity vulnerability.
How to fix CVE-2011-1770?
To fix CVE-2011-1770, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1770 being actively exploited in the wild?
It is possible that CVE-2011-1770 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~5% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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