VulnerabilityModified
CVE-2019-3861
A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
CRITICAL 9.1EPSS 5.12%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.12%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH packets with a padding length value greater than the packet length 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.
- CVSS 3.0
- 9.1 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 5.12% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- libssh2/libssh2 · debian/debian linux · netapp/ontap select deploy administration utility · opensuse/leap
- Source
- secalert@redhat.com
References
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmlThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2136
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://seclists.org/bugtraq/2019/Apr/25
- https://security.netapp.com/advisory/ntap-20190327-0005/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3861.htmlPatch, Vendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmlThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2136
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00032.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
- https://seclists.org/bugtraq/2019/Apr/25
- https://security.netapp.com/advisory/ntap-20190327-0005/Third Party Advisory
- https://www.debian.org/security/2019/dsa-4431
- https://www.libssh2.org/CVE-2019-3861.htmlPatch, Vendor Advisory
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.