Buffer overflow in FreeBSD
CVE-2020-7454
In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.027 (85.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- FreeBSD — versions 11.3, 11.4, 12.1
- FreeBSD — versions FreeBSD 12.1-RELEASE before p5, 11.4-BETA1 before p1, and 11.3-RELEASE before p9
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security.FreeBSD.org/advisories/FreeBSD-SA-20:12.libalias.asc (Vendor Advisory)
- security.netapp.com/advisory/ntap-20200518-0005/ (Third Party Advisory)
- www.zerodayinitiative.com/advisories/ZDI-20-660/ (VDB Entry, Third Party Advisory)
- www.zerodayinitiative.com/advisories/ZDI-20-659/ (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-7454?
- CVE-2020-7454 is a critical-severity vulnerability in FreeBSD, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2020-05-13.
- How severe is CVE-2020-7454?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-7454 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.