Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-03-20 Thread Mike Gabriel
Hi Markus, On Mi 20 Mär 2019 13:36:01 CET, Markus Koschany wrote: Hi Mike, On Fri, 08 Mar 2019 22:40:52 + Mike Gabriel wrote: [...] The critical patch is CVE-2019-6111-2.patch. With that patch added I get segfaults with scp. Without that patch scp works, but is susceptible to the

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-03-20 Thread Markus Koschany
Hi Mike, On Fri, 08 Mar 2019 22:40:52 + Mike Gabriel wrote: [...] > The critical patch is CVE-2019-6111-2.patch. With that patch added I > get segfaults with scp. Without that patch scp works, but is > susceptible to the earlier mentioned exploit for CVE-2019-6111. > > I am a bit lost

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-03-10 Thread Ola Lundqvist
Hi again I finally found out why I could not use xstrdup so with that fixed I run the tests again. No crash. My guess is that the crash is some other part of the code and not the newly introduced functions. // Ola On Mon, 11 Mar 2019 at 00:09, Ola Lundqvist wrote: > Hi Mike > > I have had a

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-03-10 Thread Ola Lundqvist
Hi Mike I have had a look at this. First of all I do not think the CVE is completely fixed even with the additional patch. I also do not fully understand how 6111-2.patch is supposed to work. More about this below. Let us give some example commands. [1] scp host:/foobar/a* b [2] scp host:a* b

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-03-08 Thread Mike Gabriel
Hi Colin, hi Debian LTS team, On Fr 01 Mär 2019 13:24:30 CET, Colin Watson wrote: And yes, it looks OK - I'll upload it to unstable shortly. I have prepared a backport of this newly added patch [1] (see #923486 for details) to openssh in Debian jessie LTS, but with that patch backported

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-03-01 Thread Colin Watson
On Thu, Feb 28, 2019 at 11:05:37PM +0100, Salvatore Bonaccorso wrote: > Colin, but please double check if this is enough. A server which sends > an additional malicious file is blocked by that (and the patch is not > following git-dpm workflow as I'm unfamiliar with it). Cherry-picked as follows,

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-02-28 Thread Salvatore Bonaccorso
Hi Attached the patch and debdiff for unstable which fixes this issue. Colin, but please double check if this is enough. A server which sends an additional malicious file is blocked by that (and the patch is not following git-dpm workflow as I'm unfamiliar with it). dummy@sid:~$ scp -P

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-02-28 Thread Mike Gabriel
Hi Salvatore, On Do 28 Feb 2019 22:43:26 CET, Salvatore Bonaccorso wrote: Hi Unchecked yet, but there was a related follow up commit upstream as per https://anongit.mindrot.org/openssh.git/commit/?id=3d896c157c722bc47adca51a58dca859225b5874 Regards, Salvatore will rebase that against

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-02-28 Thread Salvatore Bonaccorso
Hi Unchecked yet, but there was a related follow up commit upstream as per https://anongit.mindrot.org/openssh.git/commit/?id=3d896c157c722bc47adca51a58dca859225b5874 Regards, Salvatore

Bug#923486: CVE-2019-6111 not fixed, file transfer of unwanted files by malicious SSH server still possible

2019-02-28 Thread Mike Gabriel
Source: openssh Version: 1:7.9p1-7 Severity: important Tags: security Control: found -1 1:7.9p1-6 Control: found -1 1:7.4p1-10+deb9u5 Control: found -1 1:6.7p1-5+deb8u7 Hi, while working on a fixed openssh version for Debian jessie LTS regarding CVE-2019-6110 CVE-2019-6111 CVE-2018-20685