Vulnerability Details : 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.
Vulnerability category: Input validationDenial of service
Products affected by CVE-2017-16227
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:quagga:quagga:*:*:*:*:*:*:*:*
Threat overview for CVE-2017-16227
Top countries where our scanners detected CVE-2017-16227
Top open port discovered on systems with this issue
2601
IPs affected by CVE-2017-16227 47,721
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2017-16227!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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Exploit prediction scoring system (EPSS) score for CVE-2017-16227
1.92%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-16227
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-16227
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-16227
-
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.html
[quagga-dev 16660] [PATCH] bgpd: fix length calculation of multi-segment AS_PATH UPDATE messagesIssue Tracking;Patch;Third Party Advisory
-
https://bugs.debian.org/879474
#879474 - quagga-bgpd: CVE-2017-16227: BGP session termination due to rather long AS paths in update messages - Debian Bug report logsIssue Tracking;Patch;Third Party Advisory
-
http://www.debian.org/security/2017/dsa-4011
Debian -- Security Information -- DSA-4011-1 quaggaIssue Tracking;Third Party Advisory
-
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt
Issue Tracking;Third Party Advisory
-
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008
quagga.git - quaggaIssue Tracking;Patch;Third Party Advisory
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