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[ GLSA 200605-15 ] Quagga Routing Suite: Multiple vulnerabilities
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PostPosted: Sun May 21, 2006 7:26 pm    Post subject: [ GLSA 200605-15 ] Quagga Routing Suite: Multiple vulnerabil Reply with quote

Gentoo Linux Security Advisory

Title: Quagga Routing Suite: Multiple vulnerabilities (GLSA 200605-15)
Severity: normal
Exploitable: remote
Date: May 21, 2006
Bug(s): #132353
ID: 200605-15

Synopsis

Quagga's RIP daemon allows the injection of routes and the disclosure of routing information. The BGP daemon is vulnerable to a Denial of Service.

Background

The Quagga Routing Suite implements three major routing protocols: RIP (v1/v2/v3), OSPF (v2/v3) and BGP4.

Affected Packages

Package: net-misc/quagga
Vulnerable: < 0.98.6-r1
Unaffected: >= 0.98.6-r1
Architectures: All supported architectures


Description

Konstantin V. Gavrilenko discovered two flaws in the Routing Information Protocol (RIP) daemon that allow the processing of RIP v1 packets (carrying no authentication) even when the daemon is configured to use MD5 authentication or, in another case, even if RIP v1 is completely disabled. Additionally, Fredrik Widell reported that the Border Gateway Protocol (BGP) daemon contains a flaw that makes it lock up and use all available CPU when a specific command is issued from the telnet interface.

Impact

By sending RIP v1 response packets, an unauthenticated attacker can alter the routing table of a router running Quagga's RIP daemon and disclose routing information. Additionally, it is possible to lock up the BGP daemon from the telnet interface.

Workaround

There is no known workaround at this time.

Resolution

All Quagga users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/quagga-0.98.6-r1"


References

CVE-2006-2223
CVE-2006-2224
CVE-2006-2276
Official release information
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