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Switch to recently released version 1.1 of NVD CVE JSON feed, as in
https://nvd.nist.gov/General/News/JSON-1-1-Vulnerability-Feed-Release
it is mentioned that
Due to changes required to support CVSS v3.1 scoring, the JSON
vulnerability feeds must be modified. This will require the consumers
of this data to update their internal processes. We will be providing
the JSON 1.1 schema on the data feeds page and the information below
to prepare for this transition.
...
The JSON 1.1 data feeds will be available on September 9th, 2019. At
that time the current JSON 1.0 data feeds will no longer available.
This change was tested briefly by issuing 'bitbake core-image-minimal'
with 'cve-check.bbclass' inherited via local.conf, and then comparing
the content between the resulting two
'DEPLOY_DIR_IMAGE/core-image-minimal-qemux86.cve' files, which did not
seem to contain any other change, except total of 167 entries like
CVSS v3 BASE SCORE: 0.0
were replaced with similar 'CVSS v3 BASE SCORE:' entries which had
scores that were greater than '0.0' (up to '9.8').
Signed-off-by: Niko Mauno <niko.mauno@iki.fi>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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urllib handles adding proxy handlers if the proxies are set in the environment,
so call bb.utils.export_proxies() to do that and remove the manual setup.
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Create an index on the PRODUCTS table which contains a row for each CPE,
drastically increasing the performance of lookups for a specific CVE.
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Don't hardcode the database filename, there's a variable for this in
cve-check.bbclass.
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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We already fetch the yearly CVE metadata and check that for updates before
downloading the full data, but we can speed up CVE checking further by only
checking the CVE metadata once an hour.
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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When https_proxy is set, use proxy opener to open CVE metadata and
database URLs, otherwise fallback to the urllib.request.urlopen.
Also fix a minor issue where the json database which has been gzip
decompressed as byte object should be decoded as utf-8 string as
expected by update_db.
Signed-off-by: Chin Huat Ang <chin.huat.ang@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Currently the code fetches the compressed JSON, writes it to a temporary file,
uncompresses that with gzip and passes the fake file object to update_db().
Instead, uncompress the gzip'd data in memory and pass the JSON directly to
update_db().
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The metadata parser is fragile: first it coerces a bytes() to a str() (so the
string is b'LastModifiedDate:2019...'), assumes the first line is the date, and
then uses a regex to parse (which then includes the trailing quote as part of
the date).
Clean this up by parsing the bytes as UTF-8 (ASCII is probably fine, but this is
safer), iterate through the lines and split on colons to find the right
key/value pair.
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Instead of calling execute() repeatedly, rewrite the function to be a generator
and use executemany() for performance.
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The recipe was called -native but didn't inherit native.
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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djb2 hash algorithm was found to do collisions, so the database was
sometime missing data. Remove this hash mechanism, clear and populate
elements from scratch in PRODUCTS table if the current year needs an
update.
Signed-off-by: Pierre Le Magourou <pierre.lemagourou@softbankrobotics.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Signed-off-by: Pierre Le Magourou <pierre.lemagourou@softbankrobotics.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Instead of using expanded list of affected versions that is not
reliable, use the 'cpe_match' node in the 'configurations' json node.
For cve-check to correctly match affected CVE, the sqlite database need to
contain operator_start, operator_end and the corresponding versions fields.
Signed-off-by: Pierre Le Magourou <pierre.lemagourou@softbankrobotics.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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do_populate_cve_db is a native task.
Signed-off-by: Pierre Le Magourou <pierre.lemagourou@softbankrobotics.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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Niko Mauno
Ross Burton
Chin Huat Ang
Pierre Le Magourou