CVE-2017-16227

The aspath_put function in bgpd/bgp_aspath.c in Quagga before 1.2.2 allows remote attackers to cause a denial of service (session drop) via BGP UPDATE messages, because AS_PATH size calculation for long paths counts certain bytes twice and consequently constructs an invalid message.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
VendorProductVersion
quaggaquagga
𝑥
≤ 1.2.1
debiandebian_linux
8.0
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
quagga
artful
Fixed 1.1.1-3ubuntu0.1
released
zesty
Fixed 1.1.1-1ubuntu0.1
released
xenial
Fixed 0.99.24.1-2ubuntu1.3
released
trusty
Fixed 0.99.22.4-3ubuntu1.4
released
Common Weakness Enumeration
References
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt
http://www.debian.org/security/2017/dsa-4011
https://bugs.debian.org/879474
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.html
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt
http://www.debian.org/security/2017/dsa-4011
https://bugs.debian.org/879474
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.html