for those who missed it... kind regards, niko -------- Original Message -------- Subject: Re: [oss-security] CVE Request -- Quagga (bgpd) [two ids] -- 1, Stack buffer overflow by processing crafted Refresh-Route msgs 2, NULL ptr deref by parsing certain AS paths by BGP update request Date: Wed, 25 Aug 2010 10:21:59 -0400 From: Josh Bressers <bressers@redhat.com> Reply-To: oss-security@lists.openwall.com To: oss-security@lists.openwall.com CC: CERT-FI Vulnerability Co-ordination <vulncoord@ficora.fi>, Chris Hall <chris.hall@highwayman.com>, Denis Ovsienko <infrastation@yandex.ru>, "Steven M. Christey" <coley@linus.mitre.org> ----- "Jan Lieskovsky" <jlieskov@redhat.com> wrote:

Hi Steve, vendors,

Quagga upstream has released latest vQuagga 0.99.17 version, addressing two security flaws:

A, Stack buffer overflow by processing certain Route-Refresh messages

A stack buffer overflow flaw was found in the way Quagga's bgpd daemon processed Route-Refresh messages. A configured Border Gateway Protocol (BGP) peer could send a Route-Refresh message with specially-crafted Outbound Route Filtering (ORF) record, which would cause the master BGP daemon (bgpd) to crash or, possibly, execute arbitrary code with the privileges of the user running bgpd.

Upstream changeset: [1] http://code.quagga.net/?p=quagga.git;a=commit;h=d64379e8f3c0636df53ed08d5b2f...

References: [2] https://bugzilla.redhat.com/show_bug.cgi?id=626783 [3] http://www.quagga.net/news2.php?y=2010&m=8&d=19#id1282241100

Use CVE-2010-2948 for this one.

B, DoS (crash) while processing certain BGP update AS path messages

A NULL pointer dereference flaw was found in the way Quagga's bgpd daemon parsed paths of autonomous systems (AS). A configured BGP peer could send a BGP update AS path request with unknown AS type, which could lead to denial of service (bgpd daemon crash).

Upstream changeset: [4] http://code.quagga.net/?p=quagga.git;a=commit;h=cddb8112b80fa9867156c637d63e...

References: [5] https://bugzilla.redhat.com/show_bug.cgi?id=626795 [6] http://www.quagga.net/news2.php?y=2010&m=8&d=19#id1282241100

Use CVE-2010-2949 for this one. Thanks. -- JB