CVE-2019-3861

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html

https://access.redhat.com/errata/RHSA-2019:2136

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3861

https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html

https://lists.fedoraproject.org/archives/list/[email protected]/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/

https://seclists.org/bugtraq/2019/Apr/25

https://security.netapp.com/advisory/ntap-20190327-0005/

https://www.debian.org/security/2019/dsa-4431

https://www.libssh2.org/CVE-2019-3861.html

https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Details

Source: MITRE

Published: 2019-03-25

Updated: 2019-04-15

Type: CWE-125

Risk Information

CVSS v2

Base Score: 6.4

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

Impact Score: 4.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Impact Score: 5.2

Exploitability Score: 3.9

Severity: CRITICAL

Tenable Plugins

View all (26 total)

IDNameProductFamilySeverity
143867SUSE SLED15 / SLES15 Security Update : libssh2_org (SUSE-SU-2020:3551-1)NessusSuSE Local Security Checks
high
143507openSUSE Security Update : libssh2_org (openSUSE-2020-2126)NessusSuSE Local Security Checks
high
143452openSUSE Security Update : libssh2_org (openSUSE-2020-2129)NessusSuSE Local Security Checks
high
132483NewStart CGSL CORE 5.05 / MAIN 5.05 : libssh2 Multiple Vulnerabilities (NS-SA-2019-0252)NessusNewStart CGSL Local Security Checks
critical
129930NewStart CGSL CORE 5.04 / MAIN 5.04 : libssh2 Multiple Vulnerabilities (NS-SA-2019-0205)NessusNewStart CGSL Local Security Checks
critical
128360CentOS 7 : libssh2 (CESA-2019:2136)NessusCentOS Local Security Checks
critical
128235Scientific Linux Security Update : libssh2 on SL7.x x86_64 (20190806)NessusScientific Linux Local Security Checks
critical
127680RHEL 7 : libssh2 (RHSA-2019:2136)NessusRed Hat Local Security Checks
critical
127465Amazon Linux 2 : libssh2 (ALAS-2019-1263)NessusAmazon Linux Local Security Checks
critical
126377Photon OS 3.0: Libssh2 PHSA-2019-3.0-0009NessusPhotonOS Local Security Checks
critical
125155Photon OS 1.0: Libssh2 PHSA-2019-1.0-0222NessusPhotonOS Local Security Checks
critical
124932EulerOS Virtualization 3.0.1.0 : libssh2 (EulerOS-SA-2019-1429)NessusHuawei Local Security Checks
high
124738EulerOS Virtualization 2.5.3 : libssh2 (EulerOS-SA-2019-1360)NessusHuawei Local Security Checks
critical
124503Fedora 30 : libssh2 (2019-70a9d4f970)NessusFedora Local Security Checks
high
124437EulerOS 2.0 SP5 : libssh2 (EulerOS-SA-2019-1310)NessusHuawei Local Security Checks
high
124436EulerOS 2.0 SP3 : libssh2 (EulerOS-SA-2019-1309)NessusHuawei Local Security Checks
high
124435EulerOS 2.0 SP2 : libssh2 (EulerOS-SA-2019-1308)NessusHuawei Local Security Checks
high
124182FreeBSD : libssh2 -- multiple issues (6e58e1e9-2636-413e-9f84-4c0e21143628)NessusFreeBSD Local Security Checks
high
124039Debian DSA-4431-1 : libssh2 - security updateNessusDebian Local Security Checks
high
123760Fedora 28 : libssh2 (2019-3348cb4934)NessusFedora Local Security Checks
high
123656openSUSE Security Update : libssh2_org (openSUSE-2019-1109)NessusSuSE Local Security Checks
high
123494openSUSE Security Update : libssh2_org (openSUSE-2019-1075)NessusSuSE Local Security Checks
high
123052Fedora 29 : libssh2 (2019-f31c14682f)NessusFedora Local Security Checks
high
122997SUSE SLED12 / SLES12 Security Update : libssh2_org (SUSE-SU-2019:0655-1)NessusSuSE Local Security Checks
high
122971SUSE SLES11 Security Update : libssh2_org (SUSE-SU-2019:13982-1)NessusSuSE Local Security Checks
high
122940Slackware 14.2 / current : libssh2 (SSA:2019-077-01)NessusSlackware Local Security Checks
high