CVE-2017-16227
high
CVSS v3
7.5
CVSS v4 NEW
—
VIR risk
7.5
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.
Predictions
Exploit likelihood
83%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | 8.0 | affected | |
| debian | 9.0 | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| quagga | quagga | {"endIncluding":"1.2.1"} | |
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
CWEs
CWE-20
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.