CVE-2011-0945

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Summary

CVECVE-2011-0945
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-10-03 23:55:03 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionMemory leak in the Data-link switching (aka DLSw) feature in Cisco IOS 12.1 through 12.4 and 15.0 through 15.1, and IOS XE 3.1.xS before 3.1.3S and 3.2.xS before 3.2.1S, when implemented over Fast Sequence Transport (FST), allows remote attackers to cause a denial of service (memory consumption and device reload or hang) via a crafted IP protocol 91 packet, aka Bug ID CSCth69364.

Risk And Classification

Primary CVSS: v2.0 7.8 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:C

Problem Types: CWE-399 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete

AV:N/AC:L/Au:N/C:N/I:N/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Ios 12.1 All All All
Operating System Cisco Ios 12.1t All All All
Operating System Cisco Ios 12.1xi All All All
Operating System Cisco Ios 12.1xj All All All
Operating System Cisco Ios 12.1xl All All All
Operating System Cisco Ios 12.1xm All All All
Operating System Cisco Ios 12.1xp All All All
Operating System Cisco Ios 12.1xq All All All
Operating System Cisco Ios 12.1xr All All All
Operating System Cisco Ios 12.1xs All All All
Operating System Cisco Ios 12.1xt All All All
Operating System Cisco Ios 12.1xu All All All
Operating System Cisco Ios 12.1xv All All All
Operating System Cisco Ios 12.1xy All All All
Operating System Cisco Ios 12.1ya All All All
Operating System Cisco Ios 12.1yb All All All
Operating System Cisco Ios 12.1yc All All All
Operating System Cisco Ios 12.1yd All All All
Operating System Cisco Ios 12.1ye All All All
Operating System Cisco Ios 12.1yf All All All
Operating System Cisco Ios 12.1yh All All All
Operating System Cisco Ios 12.1yi All All All
Operating System Cisco Ios 12.2b All All All
Operating System Cisco Ios 12.2bw All All All
Operating System Cisco Ios 12.2bx All All All
Operating System Cisco Ios 12.2by All All All
Operating System Cisco Ios 12.2cz All All All
Operating System Cisco Ios 12.2dd All All All
Operating System Cisco Ios 12.2dx All All All
Operating System Cisco Ios 12.2ex All All All
Operating System Cisco Ios 12.2ira All All All
Operating System Cisco Ios 12.2irb All All All
Operating System Cisco Ios 12.2irc All All All
Operating System Cisco Ios 12.2ird All All All
Operating System Cisco Ios 12.2ire All All All
Operating System Cisco Ios 12.2ixa All All All
Operating System Cisco Ios 12.2ixb All All All
Operating System Cisco Ios 12.2ixc All All All
Operating System Cisco Ios 12.2ixd All All All
Operating System Cisco Ios 12.2ixe All All All
Operating System Cisco Ios 12.2ixf All All All
Operating System Cisco Ios 12.2ixg All All All
Operating System Cisco Ios 12.2ixh All All All
Operating System Cisco Ios 12.2mra All All All
Operating System Cisco Ios 12.2mrb All All All
Operating System Cisco Ios 12.2sbc All All All
Operating System Cisco Ios 12.2sca All All All
Operating System Cisco Ios 12.2scb All All All
Operating System Cisco Ios 12.2scc All All All
Operating System Cisco Ios 12.2scd All All All
Operating System Cisco Ios 12.2sg All All All
Operating System Cisco Ios 12.2sra All All All
Operating System Cisco Ios 12.2srb All All All
Operating System Cisco Ios 12.2sre All All All
Operating System Cisco Ios 12.2su All All All
Operating System Cisco Ios 12.2sv All All All
Operating System Cisco Ios 12.2sxa All All All
Operating System Cisco Ios 12.2sxb All All All
Operating System Cisco Ios 12.2sxd All All All
Operating System Cisco Ios 12.2sxe All All All
Operating System Cisco Ios 12.2sxf All All All
Operating System Cisco Ios 12.2sy All All All
Operating System Cisco Ios 12.2sz All All All
Operating System Cisco Ios 12.2t All All All
Operating System Cisco Ios 12.2tpc All All All
Operating System Cisco Ios 12.2xa All All All
Operating System Cisco Ios 12.2xb All All All
Operating System Cisco Ios 12.2xc All All All
Operating System Cisco Ios 12.2xd All All All
Operating System Cisco Ios 12.2xg All All All
Operating System Cisco Ios 12.2xh All All All
Operating System Cisco Ios 12.2xi All All All
Operating System Cisco Ios 12.2xj All All All
Operating System Cisco Ios 12.2xk All All All
Operating System Cisco Ios 12.2xl All All All
Operating System Cisco Ios 12.2xm All All All
Operating System Cisco Ios 12.2xn All All All
Operating System Cisco Ios 12.2xq All All All
Operating System Cisco Ios 12.2xs All All All
Operating System Cisco Ios 12.2xt All All All
Operating System Cisco Ios 12.2xu All All All
Operating System Cisco Ios 12.2xv All All All
Operating System Cisco Ios 12.2xw All All All
Operating System Cisco Ios 12.2ya All All All
Operating System Cisco Ios 12.2yb All All All
Operating System Cisco Ios 12.2yc All All All
Operating System Cisco Ios 12.2yd All All All
Operating System Cisco Ios 12.2ye All All All
Operating System Cisco Ios 12.2yf All All All
Operating System Cisco Ios 12.2yh All All All
Operating System Cisco Ios 12.2yj All All All
Operating System Cisco Ios 12.2yk All All All
Operating System Cisco Ios 12.2yl All All All
Operating System Cisco Ios 12.2ym All All All
Operating System Cisco Ios 12.2yn All All All
Operating System Cisco Ios 12.2yt All All All
Operating System Cisco Ios 12.2yu All All All
Operating System Cisco Ios 12.2yv All All All
Operating System Cisco Ios 12.2yw All All All
Operating System Cisco Ios 12.2yx All All All
Operating System Cisco Ios 12.2yy All All All
Operating System Cisco Ios 12.2yz All All All
Operating System Cisco Ios 12.2zc All All All
Operating System Cisco Ios 12.2zd All All All
Operating System Cisco Ios 12.2ze All All All
Operating System Cisco Ios 12.2zf All All All
Operating System Cisco Ios 12.2zh All All All
Operating System Cisco Ios 12.2zj All All All
Operating System Cisco Ios 12.2zl All All All
Operating System Cisco Ios 12.2zp All All All
Operating System Cisco Ios 12.2zu All All All
Operating System Cisco Ios 12.2zy All All All
Operating System Cisco Ios 12.2zya All All All
Operating System Cisco Ios 12.3 All All All
Operating System Cisco Ios 12.3b All All All
Operating System Cisco Ios 12.3t All All All
Operating System Cisco Ios 12.3tpc All All All
Operating System Cisco Ios 12.3va All All All
Operating System Cisco Ios 12.3xa All All All
Operating System Cisco Ios 12.3xb All All All
Operating System Cisco Ios 12.3xc All All All
Operating System Cisco Ios 12.3xd All All All
Operating System Cisco Ios 12.3xe All All All
Operating System Cisco Ios 12.3xf All All All
Operating System Cisco Ios 12.3xg All All All
Operating System Cisco Ios 12.3xi All All All
Operating System Cisco Ios 12.3xj All All All
Operating System Cisco Ios 12.3xk All All All
Operating System Cisco Ios 12.3xl All All All
Operating System Cisco Ios 12.3xq All All All
Operating System Cisco Ios 12.3xr All All All
Operating System Cisco Ios 12.3xs All All All
Operating System Cisco Ios 12.3xu All All All
Operating System Cisco Ios 12.3xw All All All
Operating System Cisco Ios 12.3xx All All All
Operating System Cisco Ios 12.3xy All All All
Operating System Cisco Ios 12.3xz All All All
Operating System Cisco Ios 12.3ya All All All
Operating System Cisco Ios 12.3yd All All All
Operating System Cisco Ios 12.3yf All All All
Operating System Cisco Ios 12.3yg All All All
Operating System Cisco Ios 12.3yh All All All
Operating System Cisco Ios 12.3yi All All All
Operating System Cisco Ios 12.3yj All All All
Operating System Cisco Ios 12.3yk All All All
Operating System Cisco Ios 12.3ym All All All
Operating System Cisco Ios 12.3yq All All All
Operating System Cisco Ios 12.3ys All All All
Operating System Cisco Ios 12.3yt All All All
Operating System Cisco Ios 12.3yu All All All
Operating System Cisco Ios 12.3yx All All All
Operating System Cisco Ios 12.3yz All All All
Operating System Cisco Ios 12.3za All All All
Operating System Cisco Ios 12.4 All All All
Operating System Cisco Ios 12.4gc All All All
Operating System Cisco Ios 12.4md All All All
Operating System Cisco Ios 12.4mda All All All
Operating System Cisco Ios 12.4mr All All All
Operating System Cisco Ios 12.4mra All All All
Operating System Cisco Ios 12.4sw All All All
Operating System Cisco Ios 12.4t All All All
Operating System Cisco Ios 12.4xa All All All
Operating System Cisco Ios 12.4xb All All All
Operating System Cisco Ios 12.4xc All All All
Operating System Cisco Ios 12.4xd All All All
Operating System Cisco Ios 12.4xe All All All
Operating System Cisco Ios 12.4xf All All All
Operating System Cisco Ios 12.4xg All All All
Operating System Cisco Ios 12.4xj All All All
Operating System Cisco Ios 12.4xk All All All
Operating System Cisco Ios 12.4xl All All All
Operating System Cisco Ios 12.4xm All All All
Operating System Cisco Ios 12.4xn All All All
Operating System Cisco Ios 12.4xp All All All
Operating System Cisco Ios 12.4xq All All All
Operating System Cisco Ios 12.4xr All All All
Operating System Cisco Ios 12.4xt All All All
Operating System Cisco Ios 12.4xv All All All
Operating System Cisco Ios 12.4xw All All All
Operating System Cisco Ios 12.4xy All All All
Operating System Cisco Ios 12.4xz All All All
Operating System Cisco Ios 12.4ya All All All
Operating System Cisco Ios 12.4yb All All All
Operating System Cisco Ios 12.4yd All All All
Operating System Cisco Ios 12.4ye All All All
Operating System Cisco Ios 12.4yg All All All
Operating System Cisco Ios 15.0m All All All
Operating System Cisco Ios 15.0s All All All
Operating System Cisco Ios 15.0xa All All All
Operating System Cisco Ios 15.1t All All All
Operating System Cisco Ios 15.1xb All All All
Operating System Cisco Ios Xe 3.1.0s All All All
Operating System Cisco Ios Xe 3.1.1s All All All
Operating System Cisco Ios Xe 3.1.2s All All All
Operating System Cisco Ios Xe 3.2.0s All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Cisco IOS Software Data-Link Switching IP Packet Processing Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 tools.cisco.com
Cisco Security Advisory: Cisco IOS Software Data-Link Switching Vulnerability - Cisco Systems af854a3a-2127-422b-91ae-364da2661108 www.cisco.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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