Buffer overflow in FreeBSD
CVE-2017-1084
In FreeBSD before 11.2-RELEASE, multiple issues with the implementation of the stack guard-page reduce the protections afforded by the guard-page. This results in the possibility a poorly written process could be cause a stack overflow.
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: 0.153 (96.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.153 · newest: 0.153 · change: 0.000
Affected products
- FreeBSD — versions before 11.2-RELEASE
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/42277/ (VDB Entry, Third Party Advisory, exploit)
- www.qualys.com/2017/06/19/stack-clash/stack-clash.txt (Technical Description, Exploit, Third Party Advisory)
- www.exploit-db.com/exploits/42278/ (VDB Entry, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2017-1084?
- CVE-2017-1084 is a high-severity vulnerability in FreeBSD, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2018-09-12.
- How severe is CVE-2017-1084?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-1084 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.