Use After Free in Freebsd
CVE-2017-1081
In FreeBSD before 11.0-STABLE, 11.0-RELEASE-p10, 10.3-STABLE, and 10.3-RELEASE-p19, ipfilter using "keep state" or "keep frags" options can cause a kernel panic when fed specially crafted packet fragments due to incorrect memory handling.
Vulnerability class: Use-After-Free
EPSS: 0.027 (84.2th percentile) — read the EPSS interpretation.
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.
Affected products
- Freebsd — versions 11.0, 10.3, prior to 11.0-RELEASE-p10 and 10.3-RELEASE-p19
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secteam@freebsd.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- secteam@freebsd.org (x_refsource_FREEBSD, vendor-advisory, Vendor Advisory)
- secteam@freebsd.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
Frequently asked questions
- What is CVE-2017-1081?
- CVE-2017-1081 is a high-severity vulnerability in Freebsd, classified under Use After Free. CVSS score: 7.5/10. Published 2018-04-10.
- How severe is CVE-2017-1081?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-1081 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.