low
2.9
Advisory Published
Updated

CVE-2012-1820

First published: Wed Jun 13 2012(Updated: )

The bgp_capability_orf function in bgpd in Quagga 0.99.20.1 and earlier allows remote attackers to cause a denial of service (assertion failure and daemon exit) by leveraging a BGP peering relationship and sending a malformed Outbound Route Filtering (ORF) capability TLV in an OPEN message.

Credit: cret@cert.org

Affected SoftwareAffected VersionHow to fix
Quagga Routing Software Suite<=0.99.20.1
Quagga Routing Software Suite=0.95
Quagga Routing Software Suite=0.96
Quagga Routing Software Suite=0.96.1
Quagga Routing Software Suite=0.96.2
Quagga Routing Software Suite=0.96.3
Quagga Routing Software Suite=0.96.4
Quagga Routing Software Suite=0.96.5
Quagga Routing Software Suite=0.97.0
Quagga Routing Software Suite=0.97.1
Quagga Routing Software Suite=0.97.2
Quagga Routing Software Suite=0.97.3
Quagga Routing Software Suite=0.97.4
Quagga Routing Software Suite=0.97.5
Quagga Routing Software Suite=0.98.0
Quagga Routing Software Suite=0.98.1
Quagga Routing Software Suite=0.98.2
Quagga Routing Software Suite=0.98.3
Quagga Routing Software Suite=0.98.4
Quagga Routing Software Suite=0.98.5
Quagga Routing Software Suite=0.98.6
Quagga Routing Software Suite=0.99.1
Quagga Routing Software Suite=0.99.2
Quagga Routing Software Suite=0.99.3
Quagga Routing Software Suite=0.99.4
Quagga Routing Software Suite=0.99.5
Quagga Routing Software Suite=0.99.6
Quagga Routing Software Suite=0.99.7
Quagga Routing Software Suite=0.99.8
Quagga Routing Software Suite=0.99.9
Quagga Routing Software Suite=0.99.10
Quagga Routing Software Suite=0.99.11
Quagga Routing Software Suite=0.99.12
Quagga Routing Software Suite=0.99.13
Quagga Routing Software Suite=0.99.14
Quagga Routing Software Suite=0.99.15
Quagga Routing Software Suite=0.99.16
Quagga Routing Software Suite=0.99.17
Quagga Routing Software Suite=0.99.18
Quagga Routing Software Suite=0.99.19
Quagga Routing Software Suite=0.99.20

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2012-1820?

    CVE-2012-1820 has a severity that can lead to denial of service due to an assertion failure and daemon exit.

  • How do I fix CVE-2012-1820?

    To fix CVE-2012-1820, upgrade Quagga to version 0.99.21 or later.

  • Which software versions are affected by CVE-2012-1820?

    CVE-2012-1820 affects Quagga versions up to and including 0.99.20.1 and specific earlier versions.

  • What kind of attack does CVE-2012-1820 exploit?

    CVE-2012-1820 is exploited by sending a malformed Outbound Route Filtering capability TLV in a BGP OPEN message.

  • Can I still use Quagga if I have CVE-2012-1820?

    Using Quagga versions affected by CVE-2012-1820 is risky as it could lead to service disruption unless patched.

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