by Kastro
Paper/Archive/CVE-2019-3862

CVE-2019-3862

The libssh2 Project libssh2 — An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message…

EPSS 8%CVSS 9.1
critical.is priorityof 100
46
CVSS 9.1 (NVD)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 94.7.947 × 2018.9No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the way SSH_MSG_CHANNEL_REQUEST packets with an exit status message and no payload 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.

Affected

ProductAffectedFixed inSource
libssh21.8.1–CNA
SIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP
SIPLUS S7-1500 CPU 1518-4 PN/DP MFPV3.1.0 – < V3.1.5V3.1.5siemens-SADP

Scores by source

NVD9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
redhat (CNA)7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

refopenwall.com/lists/oss-security/2019/03/18/3refseclists.org/bugtraq/2019/Mar/25reflibssh2.org/CVE-2019-3862.htmlrefbugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3862refpacketstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.htmlrefsecurityfocus.com/bid/107485advisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LOrefbroadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767reflists.debian.org/debian-lts-announce/2019/03/msg00032.htmlrefsecurity.netapp.com/advisory/ntap-20190327-0005advisorylists.opensuse.org/opensuse-security-announce/2019-03/msg00040.htmladvisorylists.opensuse.org/opensuse-security-announce/2019-04/msg00003.htmladvisorylists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2Oadvisorydebian.org/security/2019/dsa-4431refseclists.org/bugtraq/2019/Apr/25advisoryaccess.redhat.com/errata/RHSA-2019:1884reforacle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlreforacle.com/security-alerts/cpujan2020.htmlrefcert-portal.siemens.com/productcert/html/ssa-398330.html