Out-of-bounds Read in Cisco Sourcefire Snort
CVE-2017-6658
Cisco Sourcefire Snort 3.0 before build 233 has a Buffer Overread related to use of a decoder array. The size was off by one making it possible to read past the end of the array with an ether type of 0xFFFF. Increasing the array size solves this problem.
Vulnerability class: Buffer Overflow
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: 0.011 (63.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Cisco Sourcefire Snort — versions 3.0
- Snort 3.0 All Versions Prior To Build 233. — versions Snort 3.0 All versions prior to build 233.
Weakness classification (CWE)
References
- www.securitytracker.com/id/1038483 (vdb-entry)
- blog.snort.org/2017/05/snort-vulnerabilities-found.html (Third Party Advisory)
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170515… (Vendor Advisory)
Frequently asked questions
- What is CVE-2017-6658?
- CVE-2017-6658 is a high-severity vulnerability in Cisco Sourcefire Snort, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2017-05-16.
- How severe is CVE-2017-6658?
- High severity. CVSS v3 base score is 7.5 out of 10.