Out-of-bounds Read in Libssh2
CVE-2019-3860
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SFTP packets with empty payloads are parsed. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.051 (92.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.051 · newest: 0.051 · change: 0.000
Affected products
- Libssh2
- NetApp Ontap Select Deploy Administration Utility
- The Libssh2 Project — versions 1.8.1
- Debian Linux — versions 8.0
- openSUSE Leap — versions 15.0, 42.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.libssh2.org/CVE-2019-3860.html (Patch, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2019/03/msg00032.html (mailing-list, Third Party Advisory)
- security.netapp.com/advisory/ntap-20190327-0005/ (Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html (vendor-advisory, Mailing List, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.debian.org/security/2019/dsa-4431 (vendor-advisory)
- seclists.org/bugtraq/2019/Apr/25 (mailing-list)
- lists.opensuse.org/opensuse-security-announce/2019-06/msg00072.html (vendor-advisory)
Frequently asked questions
- What is CVE-2019-3860?
- CVE-2019-3860 is a medium-severity vulnerability in Libssh2, classified under Out-of-bounds Read. CVSS score: 5.0/10. Published 2019-03-25.
- How severe is CVE-2019-3860?
- Medium severity. CVSS v3 base score is 5.0 out of 10.
- Is CVE-2019-3860 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.