CVE-2011-2520

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Summary

CVECVE-2011-2520
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-07-21 23:55:03 UTC
Updated2026-04-29 01:13:23 UTC
Descriptionfw_dbus.py in system-config-firewall 1.2.29 and earlier uses the pickle Python module unsafely during D-Bus communication between the GUI and the backend, which might allow local users to gain privileges via a crafted serialized object.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-502 | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary6AV:L/AC:H/Au:S/C:C/I:C/A:C

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
High
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:H/Au:S/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 15 All All All
Application Redhat System-config-firewall All All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com Not Applicable
SecurityTracker: Red Hat system-config-firewall Lets Local Users Gain Root Privileges af854a3a-2127-422b-91ae-364da2661108 securitytracker.com Broken Link
Red Hat system-config-firewall Local Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Broken Link
Bug 717985 – CVE-2011-2520 system-config-firewall: privilege escalation flaw via use of python pickle af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Issue Tracking
[SECURITY] Fedora 15 Update: system-config-firewall-1.2.29-4.fc15 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org Mailing List
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com Third Party Advisory, VDB Entry
Red Hat update for system-config-firewall - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Not Applicable
oss-security - CVE-2011-2520: flaw in system-config-firewall's usage of pickle allows privilege escalation af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List
Red Hat Customer Portal MITRE access.redhat.com
CVE-2011-2520 - Red Hat Customer Portal MITRE access.redhat.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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