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[SECURITY] [DLA 1730-4] libssh2 regression update

Package        : libssh2
Version        : 1.4.3-4.1+deb8u5
CVE ID         : CVE-2019-3860

Several more boundary checks have been backported to libssh2's
src/sftp.c. Furthermore, all boundary checks in src/sftp.c now result in
an LIBSSH2_ERROR_BUFFER_TOO_SMALL error code, rather than a

As a side note, it was discovered that libssh2's SFTP implementation from
Debian jessie only works well against OpenSSH SFTP servers from Debian
wheezy, tests against newer OpenSSH versions (such as available in Debian
jessie and beyond) interim-fail with SFTP protocol error "Error opening
remote file". Operation might continue after this error, this depends on
application implementations.

For Debian 8 "Jessie", this problem has been fixed in version

We recommend that you upgrade your libssh2 packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS


mike gabriel aka sunweaver (Debian Developer)
fon: +49 (1520) 1976 148

GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22  0782 9AF4 6B30 2577 1B31
mail: sunweaver@debian.org, http://sunweavers.net

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