CVE Vulnerabilities

CVE-2020-16135

NULL Pointer Dereference

Published: Jul 29, 2020 | Modified: Nov 21, 2024
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
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libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

NameVendorStart VersionEnd Version
LibsshLibssh0.9.4 (including)0.9.4 (including)
Red Hat Enterprise Linux 8RedHatlibssh-0:0.9.4-3.el8*
Red Hat Enterprise Linux 8RedHatlibssh-0:0.9.4-3.el8*
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8RedHatredhat-virtualization-host-0:4.4.9-202111172338_8.5*
LibsshUbuntubionic*
LibsshUbuntudevel*
LibsshUbuntuesm-infra/bionic*
LibsshUbuntuesm-infra/focal*
LibsshUbuntuesm-infra/xenial*
LibsshUbuntufocal*
LibsshUbuntutrusty*
LibsshUbuntuxenial*

Potential Mitigations

References