CVE-2011-0949

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Summary

CVECVE-2011-0949
StatePUBLISHED
Assignercisco
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-05-31 20:55:01 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionCisco IOS XR 3.6.x, 3.8.x before 3.8.3, and 3.9.x before 3.9.1 does not properly remove sshd_lock files from /tmp/, which allows remote attackers to cause a denial of service (disk consumption) by making many SSHv1 connections, aka Bug ID CSCtd64417.

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 Xr 3.6.0 All All All
Operating System Cisco Ios Xr 3.6.1 All All All
Operating System Cisco Ios Xr 3.6.2 All All All
Operating System Cisco Ios Xr 3.6.3 All All All
Operating System Cisco Ios Xr 3.8.0 All All All
Operating System Cisco Ios Xr 3.8.1 All All All
Operating System Cisco Ios Xr 3.8.2 All All All
Operating System Cisco Ios Xr 3.9.0 All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
Cisco Security Advisory: Cisco IOS XR Software SSHv1 Denial of Service 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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