First published: Thu Apr 05 2012(Updated: )
Buffer overflow in the ospf_ls_upd_list_lsa function in ospf_packet.c in the OSPFv2 implementation in ospfd in Quagga before 0.99.20.1 allows remote attackers to cause a denial of service (assertion failure and daemon exit) via a Link State Update (aka LS Update) packet that is smaller than the length specified in its header.
Credit: cret@cert.org
Affected Software | Affected Version | How to fix |
---|---|---|
Quagga Routing Software Suite | <=0.99.20 | |
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 |
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CVE-2012-0249 has a severity level that indicates it can cause denial of service by exploiting a buffer overflow.
To fix CVE-2012-0249, upgrade Quagga to version 0.99.20.1 or later.
CVE-2012-0249 affects Quagga versions up to 0.99.20 inclusive and several earlier versions.
Yes, CVE-2012-0249 can be exploited remotely through specially crafted Link State Update packets.
Exploiting CVE-2012-0249 can lead to assertion failures and the exit of the ospfd daemon, causing service disruption.