Improper input validation in Quagga
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 class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.188 (97.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.188 · newest: 0.188 · change: 0.000
Affected products
- Quagga
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
References
- bugs.debian.org/879474 (Patch, Third Party Advisory, Issue Tracking)
- download.savannah.gnu.org/releases/quagga/quagga-1.2.2.changelog.txt (Third Party Advisory, Issue Tracking)
- www.debian.org/security/2017/dsa-4011 (vendor-advisory, Third Party Advisory, Issue Tracking)
- git.savannah.gnu.org/cgit/quagga.git/commit/ (Patch, Third Party Advisory, Issue Tracking)
- lists.quagga.net/pipermail/quagga-dev/2017-September/033284.html (Patch, Third Party Advisory, Issue Tracking)
Frequently asked questions
- What is CVE-2017-16227?
- CVE-2017-16227 is a high-severity vulnerability in Quagga, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2017-10-29.
- How severe is CVE-2017-16227?
- High severity. CVSS v3 base score is 7.5 out of 10.