Buffer overflow in Mz-Automation Libiec61850
CVE-2018-19185
An issue has been found in libIEC61850 v1.3. It is a heap-based buffer overflow in BerEncoder_encodeOctetString in mms/asn1/ber_encoder.c. This is exploitable even after CVE-2018-18834 has been patched, with a different dataSetValue sequence than the CVE-2018-18834 attack vector.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.021 (81.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 81.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Mz-Automation Libiec61850 — versions 1.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/fouzhe/security/tree/master/libiec61850 (Exploit, Third Party Advisory)
- github.com/mz-automation/libiec61850/issues/87 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-19185?
- CVE-2018-19185 is a critical-severity vulnerability in Mz-Automation Libiec61850, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-11-12.
- How severe is CVE-2018-19185?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-19185 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.