Use After Free in Broadcom Brocade Fabric Operating System Firmware
CVE-2020-15436
Use-after-free vulnerability in fs/block_dev.c in the Linux kernel before 5.8 allows local users to gain privileges or cause a denial of service by leveraging improper access to a certain error field.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (60.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 61st percentile — 60.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lkml.org/lkml/2020/6/7/379 (Exploit, Patch, Vendor Advisory)
- security.netapp.com/advisory/ntap-20201218-0002/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2020-15436?
- CVE-2020-15436 is a medium-severity vulnerability in Broadcom Brocade Fabric Operating System Firmware, classified under Use After Free. CVSS score: 6.7/10. Published 2020-11-23.
- How severe is CVE-2020-15436?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2020-15436 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.