Fixed in focal:
x2goclient (4.1.2.1-4) unstable; urgency=medium
* debian/patches:
+ Add libssh-regression-fix-CVE-2019-14889.patch. In src/sshprocess.cpp:
strip ~/, ~user{,/}, ${HOME}{,/} and $HOME{,/} from destination paths
in scp mode. Fixes: #1428. This was already necessary for pascp (PuTTY-
based Windows solution for Kerberos support), but newer libssh versions
with the CVE-2019-14889 also interpret paths as literal strings.
(Closes: #947129).
-- Mike Gabriel <sunwea...@debian.org> Sat, 21 Dec 2019 17:56:23 +0100
** Changed in: x2goclient (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1856795
Title:
X2Go Client broken by 0.8.0~20170825.94fa1e38-1ubuntu0.5
Status in libssh package in Ubuntu:
Invalid
Status in x2goclient package in Ubuntu:
Fix Released
Status in libssh source package in Xenial:
New
Status in x2goclient source package in Xenial:
New
Status in libssh source package in Bionic:
New
Status in x2goclient source package in Bionic:
New
Status in libssh source package in Disco:
New
Status in x2goclient source package in Disco:
New
Status in libssh source package in Eoan:
New
Status in x2goclient source package in Eoan:
New
Status in x2goclient package in Debian:
Fix Released
Bug description:
The recent CVE fix broke SCP support in libssh, which X2Go Client
(x2goclient) relies on.
Sessions now fail with error messages such as "SCP: Warning: status
code 1 received: scp: ~username/.x2go/ssh: No such file or
directory\n". (Also note the literal "\n" there, but I guess we don't
really need to care about that.)
The previous version worked fine and rolling the libssh4 package back
fixes this issue, but also leaves users vulnerable to the fixed
security issue in its scp implementation.
I've been looking at the debdiff, but spotting the actual changes is very
difficult due to the reformatting that was done at the same time. This degraded
the patch(es) into one big blob.
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