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CVE-2020-16135
Component Overview
Vulnerability Overview
Name
CVE-2020-16135
Source
NVD (
link
)
Debian (
link
)
Description
libssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
CWEs
CWE-476
Published Date
Jul 29, 2020
Updated Date
Jun 17, 2026
Workaround
-
Advisories
https://bugs.libssh.org/T232
Issue Tracking
https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238
Exploit
https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00034.html
Mailing List
https://security.gentoo.org/glsa/202011-05
Third Party Advisory
https://usn.ubuntu.com/4447-1/
Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html
Patch
https://bugs.libssh.org/T232
Issue Tracking
https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238
Exploit
https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00034.html
Mailing List
https://security.gentoo.org/glsa/202011-05
Third Party Advisory
https://usn.ubuntu.com/4447-1/
Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html
Patch
Analysis
#
Affected Component
Analysis
libssh
Patched
Vulnerability Ratings
#
5.9
CVSSv31
4.3
CVSSv2
Others affected components
#
Name
Project
Project Version
Version
Status
libssh
buildroot
2025.02.x
0.11.4
Not Affected
libssh
buildroot
master
0.12.0
Not Affected
libssh
openwrt
master
0.12.0-r1
Not Affected
libssh
openwrt
openwrt-25.12
0.11.3-r1
Not Affected
libssh
yocto
master
0.11.4
Not Affected
libssh
yocto
scarthgap
0.10.6
Not Affected
Resolved with patches
#
libssh (yocto:kirkstone)
#
Title
Author
Resolve
1
CVE-2020-16135: Add missing NULL check for ssh_buffer_new()
Andreas Schneider <asn@cryptomilk.org>
CVE-2020-16135