Re: CVE request: ntp-keygen may generate non-random symmetric keys on big-endian systems

[Martin Prpic <mprpic () redhat com>]

Hi, this still has no CVE assigned. Thanks!

Martin Prpic writes:

> Hi, the recent NTP update (ntp-4.2.8p2) contains a fix for the following
> issue:
>
> * [Bug 2797] ntp-keygen trapped in endless loop for MD5 keys on big-endian machines.
> https://bugs.ntp.org/show_bug.cgi?id=2797
>
> Patch: http://bk1.ntp.org/ntp-stable/?PAGE=patch&REV=55199296N2gFqH1Hm5GOnhrk9Ypygg
>
> While the endless loop is not a security flaw per se, the fact that
> ntp-keygen generates non-random keys is. If the lowest byte of the temp
> variable happens to be between 0x20 and 0x7f and not #, the generated
> MD5 key will consist of 20 identical characters, meaning only 93
> possible keys can be generated.
>
> Can a CVE be please assigned for this issue?
>
> Thank you!

-- 
Martin Prpič / Red Hat Product Security