Buffer overflow in FreeBSD
CVE-2017-1085
In FreeBSD before 11.2-RELEASE, an application which calls setrlimit() to increase RLIMIT_STACK may turn a read-only memory region below the stack into a read-write region. A specially crafted executable could be exploited to execute arbitrary code in the user context.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.018 (78.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- FreeBSD — versions before 11.2-RELEASE
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.qualys.com/2017/06/19/stack-clash/stack-clash.txt (Technical Description, Exploit, Third Party Advisory)
- www.exploit-db.com/exploits/42279/ (VDB Entry, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2017-1085?
- CVE-2017-1085 is a high-severity vulnerability in FreeBSD, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2018-09-12.
- How severe is CVE-2017-1085?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-1085 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.