CVE-2020-16135

NameCVE-2020-16135
Descriptionlibssh 0.9.4 has a NULL pointer dereference in tftpserver.c if ssh_buffer_new returns NULL.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2303-1, ELA-254-1
Debian Bugs966560

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libssh (PTS)jessie, jessie (lts)0.6.3-4+deb8u5fixed
stretch (security), stretch (lts), stretch0.7.3-2+deb9u3fixed
buster0.8.7-1+deb10u1vulnerable
bullseye (security), bullseye0.9.5-1+deb11u1fixed
sid, bookworm0.10.4-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libsshsourcejessie0.6.3-4+deb8u5ELA-254-1
libsshsourcestretch0.7.3-2+deb9u3DLA-2303-1
libsshsource(unstable)0.9.5-1966560

Notes

[buster] - libssh <no-dsa> (Minor issue)
https://bugs.libssh.org/T232
https://bugs.libssh.org/rLIBSSHe631ebb3e2247dd25e9678e6827c20dc73b73238
https://gitlab.com/libssh/libssh-mirror/-/merge_requests/120

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