CVE-2011-1770: Integer Underflow
First published: Mon May 09 2011(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux-2.6 | ||
| Linux kernel | <2.6.33.14 | |
| Fedora | =14 | |
| Fedora | =15 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061366.html
- https://bugzilla.redhat.com/show_bug.cgi?id=703011
- http://marc.info/?l=linux-kernel&m=130469305815140&w=2
- http://secunia.com/advisories/44932
- http://www.securityfocus.com/bid/47769
- http://marc.info/?l=linux-kernel&m=130468845209036&w=2
- http://www.kernel.org/pub/linux/kernel/v2.6/longterm/v2.6.33/ChangeLog-2.6.33.14
- http://www.securitytracker.com/id?1025592
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061236.html
- http://securityreason.com/securityalert/8286
- http://marc.info/?l=linux-kernel&m=130469305815140&w=2
- http://marc.info/?l=linux-kernel&m=130468845209036&w=2
- https://launchpad.net/bugs/cve/CVE-2011-1770
- https://rhn.redhat.com/errata/RHSA-2011-0836.html
- https://rhn.redhat.com/errata/RHSA-2011-1253.html
- http://git.kernel.org/linus/a294865978b701e4d0d90135672749531b9a900d
- https://security-tracker.debian.org/tracker/CVE-2011-1770
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1770
- https://nvd.nist.gov/vuln/detail/CVE-2011-1770
- https://ubuntu.com/security/CVE-2011-1770
Frequently Asked Questions
What is the severity of CVE-2011-1770?
CVE-2011-1770 is classified as a medium severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2011-1770?
To fix CVE-2011-1770, you should upgrade your Linux kernel to version 2.6.33.14 or later.
What systems are affected by CVE-2011-1770?
CVE-2011-1770 affects versions of the Linux kernel before 2.6.33.14, specifically on Debian and Fedora systems.
What type of vulnerability is CVE-2011-1770?
CVE-2011-1770 is an integer underflow vulnerability that can lead to a buffer over-read.
Can CVE-2011-1770 be exploited remotely?
Yes, CVE-2011-1770 can be exploited remotely via specially crafted Datagram Congestion Control Protocol (DCCP) packets.
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2011-1770
- agent/author
- collector/security-tracker-debian
- source/Debian
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- collector/mitre-cve
- source/MITRE
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/remedy
- agent/description
- agent/event
- agent/last-modified-date
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup-request
- collector/nvd-historical
- collector/nvd-index
- package-manager/debian
- vendor/linux
- canonical/linux kernel
- vendor/fedoraproject
- canonical/fedora
- version/fedora/14
- version/fedora/15