CVE-2011-2520

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-07-21 · updated 2026-06-16
Weakness: CWE-502

Description

fw_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.

Affected products

Fedoraproject Fedora: 15
RedHat System-Config-Firewall: through 1.2.29

References

http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063314.html
http://secunia.com/advisories/45294
http://securitytracker.com/id?1025793
http://www.openwall.com/lists/oss-security/2011/07/18/6
http://www.redhat.com/support/errata/RHSA-2011-0953.html
http://www.securityfocus.com/bid/48715
https://bugzilla.redhat.com/show_bug.cgi?id=717985
https://exchange.xforce.ibmcloud.com/vulnerabilities/68734
http://lists.fedoraproject.org/pipermail/package-announce/2011-August/063314.html
http://secunia.com/advisories/45294
http://securitytracker.com/id?1025793
http://www.openwall.com/lists/oss-security/2011/07/18/6

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