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Debian Security Advisory DSA-4115-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
February 15, 2018 https://www.debian.org/security/faq
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Package : quagga
CVE ID : CVE-2018-5378 CVE-2018-5379 CVE-2018-5380 CVE-2018-5381

Several vulnerabilities have been discovered in Quagga, a routing
daemon. The Common Vulnerabilities and Exposures project identifies the
following issues:

CVE-2018-5378

It was discovered that the Quagga BGP daemon, bgpd, does not
properly bounds check data sent with a NOTIFY to a peer, if an
attribute length is invalid. A configured BGP peer can take
advantage of this bug to read memory from the bgpd process or cause
a denial of service (daemon crash).

https://www.quagga.net/security/Quagga-2018-0543.txt

CVE-2018-5379

It was discovered that the Quagga BGP daemon, bgpd, can double-free
memory when processing certain forms of UPDATE message, containing
cluster-list and/or unknown attributes, resulting in a denial of
service (bgpd daemon crash).

https://www.quagga.net/security/Quagga-2018-1114.txt

CVE-2018-5380

It was discovered that the Quagga BGP daemon, bgpd, does not
properly handle internal BGP code-to-string conversion tables.

https://www.quagga.net/security/Quagga-2018-1550.txt

CVE-2018-5381

It was discovered that the Quagga BGP daemon, bgpd, can enter an
infinite loop if sent an invalid OPEN message by a configured peer.
A configured peer can take advantage of this flaw to cause a denial
of service (bgpd daemon not responding to any other events; BGP
sessions will drop and not be reestablished; unresponsive CLI
interface).

https://www.quagga.net/security/Quagga-2018-1975.txt

For the oldstable distribution (jessie), these problems have been fixed
in version 0.99.23.1-1+deb8u5.

For the stable distribution (stretch), these problems have been fixed in
version 1.1.1-3+deb9u2.

We recommend that you upgrade your quagga packages.

For the detailed security status of quagga please refer to its security
tracker page at: https://security-tracker.debian.org/tracker/quagga

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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