CVEs / CVE-2017-16227
CVE-2017-16227: n/a n/a vulnerability
- high 7.5 CVSS 3.0 (NVD)
- EPSS 45.9% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Description
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.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
Not in the CISA Known Exploited Vulnerabilities catalog as of 30 Oct 2026.
Severity
| CVSS 3.0 | 7.5 highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HScored by NVD |
|---|---|
| Weakness | CWE-20 |
References
- CVE-2017-16227 on NVD
- CVE-2017-16227 on OSV
- http://download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt Issue Tracking, Third Party Advisory
- http://www.debian.org/security/2017/dsa-4011 Issue Tracking, Third Party Advisory
- https://bugs.debian.org/879474 Issue Tracking, Patch, Third Party Advisory
- https://git.savannah.gnu.org/cgit/quagga.git/commit/?id=7a42b78be9a4108d98833069a88e6fddb9285008 Issue Tracking, Patch, Third Party Advisory
- https://lists.quagga.net/pipermail/quagga-dev/2017-September/033284.html Issue Tracking, Patch, Third Party Advisory
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.