Home/CVE/The aspath_put function in bgpd/bgp_aspath.c in Quagga before 1.2.2 allows remote attackers to cause a denial of service
CVE

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

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.

HIGH · CVSS 7.5 EPSS 0.00773
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

2
quagga<= 1.2.1
debian linuxall versions
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD29 Oct 2017 · 08:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

5
suse-csafopenSUSE-SU-2024:11290-1
suse-csafSUSE-SU-2018:0455-1
suse-csafSUSE-SU-2018:0456-1
suse-csafSUSE-SU-2018:0457-1
usnUSN-3471-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txtIssue TrackingThird Party Advisory
http://www.debian.org/security/2017/dsa-4011Issue TrackingThird Party Advisory
https://bugs.debian.org/879474Issue TrackingPatchThird Party Advisory
https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008Issue TrackingPatchThird Party Advisory
https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.htmlIssue TrackingPatchThird Party Advisory
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