Currently, when the version encoded in a CPE is '-', we assume all
versions are affected, but when it's '*' with no further range
information, we assume no version is affected.
This doesn't make sense, so instead, we handle '*' and '-' in the same
way. If there's no version information available in the CVE CPE ID, we
assume all versions are affected.
This increases quite a bit the number of CVEs and package affected:
- "total-cves": 302,
- "pkg-cves": 100,
+ "total-cves": 597,
+ "pkg-cves": 135,
For example, CVE-2007-4476 has a CPE ID of:
cpe:2.3🅰️gnu:tar:*:*:*:*:*:*:*:*
So it should be taken into account. In this specific case, it is
combined with an AND with CPE ID
cpe:2.3⭕suse:suse_linux:10:*:enterprise_server:*:*:*:*:* but since
we don't support this kind of matching, we'd better be on the safe
side, and report this CVE as affecting tar, do an analysis of the CVE
impact, and document it in TAR_IGNORE_CVES.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Reviewed-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
The affects method of the CVE uses the Package class defined in
pkg-stats. The purpose of migrating the CVE class outside of pkg-stats
was to be able to reuse it from other scripts. So let's remove the
Package dependency and only use the needed information.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
In 2019, the JSON vulnerability feeds switched their schema from
version 1.0 to 1.1.
The main difference is the removal of the "affects" element that we
were using to check if a package was affected by a CVE.
This information is now available in the "configuration" element which
contains the cpeid as well as properties about the versions
affected. Instead of having a list of the versions affected, with
these properties, it is possible to have a range of versions.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
In order to be able to use the CVE checking logic outside of
pkg-stats, move the CVE class in a module that can be used by other
scripts.
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
