Buffer overflow in Ossec
CVE-2020-8442
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to a heap-based buffer overflow in the rootcheck decoder component via an authenticated client.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.024 (83.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/ossec/ossec-hids/issues/1820 (Exploit, Patch, Third Party Advisory)
- github.com/ossec/ossec-hids/issues/1821 (Third Party Advisory)
- www.ossec.net/ (Vendor Advisory)
- security.gentoo.org/glsa/202007-33 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-8442?
- CVE-2020-8442 is a high-severity vulnerability in Ossec, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-01-30.
- How severe is CVE-2020-8442?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2020-8442 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.