Vulnerabilities
Misconfiguration
Runtime Security
Compliance
CVE Vulnerabilities

CVE-2020-16135

NULL Pointer Dereference

Published: Jul 29, 2020 | Modified: Nov 07, 2023
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
5.9 LOW
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-16135
CWEhttps://cwe.mitre.org/data/definitions/476.html

libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.

Weakness

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Affected Software

Name Vendor Start Version End Version
Libssh Libssh 0.9.4 (including) 0.9.4 (including)
Libssh Ubuntu bionic *
Libssh Ubuntu devel *
Libssh Ubuntu focal *
Libssh Ubuntu trusty *
Libssh Ubuntu xenial *
Red Hat Enterprise Linux 8 RedHat libssh-0:0.9.4-3.el8 *
Red Hat Enterprise Linux 8 RedHat libssh-0:0.9.4-3.el8 *
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 RedHat redhat-virtualization-host-0:4.4.9-202111172338_8.5 *

Potential Mitigations

References

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