lib: spdx30_tasks: remove duplicated patched CVEs

Due to commit [lib: spdx30_tasks: Handle patched CVEs][1] applied,
duplicated CVE identifier for each CVE which increased +25% build
time (image task: do_create_image_sbom_spdx)

$ bitbake binutils-cross-x86_64
$ jq . tmp/deploy/spdx/3.0.1/x86_64/recipes/recipe-binutils-cross-x86_64.spdx.json | grep CVE-2023-25584
      "spdxId": "http://spdx.org/spdxdocs/binutils-cross-x86_64-5de92009-80e6-55c5-8b1f-cc37f04fbe09/962efd5da447b81b017db54d3077be796d2e5b6e770a6b050467b24339c0995f/vulnerability/CVE-2023-25584",
          "https://rdf.openembedded.org/spdx/3.0/alias": "http://spdxdocs.org/openembedded-alias/by-doc-hash/594f521fb7a3a4e9a2d3905303ffb04b016c3ce7693a775cca08be5af4d06658/binutils-cross-x86_64/UNIHASH/vulnerability/CVE-2023-25584"
          "identifier": "CVE-2023-25584",
            "https://cveawg.mitre.org/api/cve/CVE-2023-25584",
            "https://www.cve.org/CVERecord?id=CVE-2023-25584"
      "spdxId": "http://spdx.org/spdxdocs/binutils-cross-x86_64-5de92009-80e6-55c5-8b1f-cc37f04fbe09/962efd5da447b81b017db54d3077be796d2e5b6e770a6b050467b24339c0995f/vulnerability/CVE-2023-25584",
          "https://rdf.openembedded.org/spdx/3.0/alias": "http://spdxdocs.org/openembedded-alias/by-doc-hash/594f521fb7a3a4e9a2d3905303ffb04b016c3ce7693a775cca08be5af4d06658/binutils-cross-x86_64/UNIHASH/vulnerability/CVE-2023-25584"
          "identifier": "CVE-2023-25584",
            "https://cveawg.mitre.org/api/cve/CVE-2023-25584",
            "https://www.cve.org/CVERecord?id=CVE-2023-25584"

Since the commit [cve-check: annotate CVEs during analysis][2] improved
function get_patched_cves to:
- Check each patch file;
- Search for additional patched CVEs from CVE_STATUS;

And return dictionary patched_cve for each cve:
{
  "abbrev-status": "xxx",
  "status": "xxx",
  "justification": "xxx",
  "resource": "xxx",
  "affected-vendor": "xxx",
  "affected-product": "xxx",
}

But while adding CVE in meta/lib/oe/spdx30_tasks.py, the cve_by_status
requires decoded_status
{
  "mapping": "xxx",
  "detail": "xxx",
  "description": "xxx",
}

This commit converts patched_cve to decoded_status

  patched_cve["abbrev-status"] --> decoded_status["mapping"]
  patched_cve["status"] --> decoded_status["detail"]
  patched_cve["justification"] --> decoded_status["description"]

And remove duplicated search for additional patched CVEs from CVE_STATUS
(calling oe.cve_check.decode_cve_status)

After applying this commit
$ bitbake binutils-cross-x86_64
$ jq . tmp/deploy/spdx/3.0.1/x86_64/recipes/recipe-binutils-cross-x86_64.spdx.json | grep CVE-2023-25584
      "spdxId": "http://spdx.org/spdxdocs/binutils-cross-x86_64-5de92009-80e6-55c5-8b1f-cc37f04fbe09/381bf593d99c005ecd2c2e0815b86bca2b9ff4cc2db59587aaddd3db95c67470/vulnerability/CVE-2023-25584",
          "https://rdf.openembedded.org/spdx/3.0/alias": "http://spdxdocs.org/openembedded-alias/by-doc-hash/594f521fb7a3a4e9a2d3905303ffb04b016c3ce7693a775cca08be5af4d06658/binutils-cross-x86_64/UNIHASH/vulnerability/CVE-2023-25584"
          "identifier": "CVE-2023-25584",
            "https://cveawg.mitre.org/api/cve/CVE-2023-25584",
            "https://www.cve.org/CVERecord?id=CVE-2023-25584"

[1] https://git.openembedded.org/openembedded-core/commit/?id=1ff496546279d8a97df5ec475007cfb095c2a0bc
[2] https://git.openembedded.org/openembedded-core/commit/?id=452e605b55ad61c08f4af7089a5a9c576ca28f7d

(From OE-Core rev: 08595b39b46ef2bf3a928d4528292ee31a990c98)

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 12 deletions

diff --git a/meta/lib/oe/spdx30_tasks.py b/meta/lib/oe/spdx30_tasks.py
index e20bb0c86f..3d80f05612 100644
--- a/meta/lib/oe/spdx30_tasks.py
+++ b/meta/lib/oe/spdx30_tasks.py
@@ -498,18 +498,13 @@ def create_spdx(d):
     # Add CVEs
     cve_by_status = {}
     if include_vex != "none":
-        for cve in oe.cve_check.get_patched_cves(d):
-            spdx_cve = build_objset.new_cve_vuln(cve)
-            build_objset.set_element_alias(spdx_cve)
-
-            cve_by_status.setdefault("Patched", {})[cve] = (
-                spdx_cve,
-                "patched",
-                "",
-            )
-
-        for cve in d.getVarFlags("CVE_STATUS") or {}:
-            decoded_status = oe.cve_check.decode_cve_status(d, cve)
+        patched_cves = oe.cve_check.get_patched_cves(d)
+        for cve, patched_cve in patched_cves.items():
+            decoded_status = {
+                "mapping": patched_cve["abbrev-status"],
+                "detail": patched_cve["status"],
+                "description": patched_cve.get("justification", None)
+            }
 
             # If this CVE is fixed upstream, skip it unless all CVEs are
             # specified.