From bf34db143956294d64998beb3a83f46c1e39d9d9 Mon Sep 17 00:00:00 2001 From: Marta Rybczynska Date: Wed, 14 Aug 2024 07:30:35 +0200 Subject: cve-check: encode affected product/vendor in CVE_STATUS CVE_STATUS contains assesment of a given CVE, but until now it didn't have include the affected vendor/product. In the case of a global system include, that CVE_STATUS was visible in all recipes. This patch allows encoding of affected product/vendor to each CVE_STATUS assessment, also for groups. We can then filter them later and use only CVEs that correspond to the recipe. This is going to be used in meta/conf/distro/include/cve-extra-exclusions.inc and similar places. (From OE-Core rev: abca80a716e92fc18d3085aba1a15f4bac72379c) Signed-off-by: Marta Rybczynska Signed-off-by: Richard Purdie --- meta/classes/cve-check.bbclass | 24 ++++++++++++------------ meta/lib/oe/cve_check.py | 39 ++++++++++++++++++++++++++++++--------- meta/lib/oe/spdx30_tasks.py | 11 ++++++----- 3 files changed, 48 insertions(+), 26 deletions(-) (limited to 'meta') diff --git a/meta/classes/cve-check.bbclass b/meta/classes/cve-check.bbclass index c946de29a4..bc35a1c53c 100644 --- a/meta/classes/cve-check.bbclass +++ b/meta/classes/cve-check.bbclass @@ -324,8 +324,8 @@ def check_cves(d, patched_cves): # Convert CVE_STATUS into ignored CVEs and check validity cve_ignore = [] for cve in (d.getVarFlags("CVE_STATUS") or {}): - decoded_status, _, _ = decode_cve_status(d, cve) - if decoded_status == "Ignored": + decoded_status = decode_cve_status(d, cve) + if 'mapping' in decoded_status and decoded_status['mapping'] == "Ignored": cve_ignore.append(cve) import sqlite3 @@ -507,11 +507,11 @@ def cve_write_data_text(d, patched, unpatched, ignored, cve_data): write_string += "PACKAGE VERSION: %s%s\n" % (d.getVar("EXTENDPE"), d.getVar("PV")) write_string += "CVE: %s\n" % cve write_string += "CVE STATUS: %s\n" % status - _, detail, description = decode_cve_status(d, cve) - if detail: - write_string += "CVE DETAIL: %s\n" % detail - if description: - write_string += "CVE DESCRIPTION: %s\n" % description + status_details = decode_cve_status(d, cve) + if 'detail' in status_details: + write_string += "CVE DETAIL: %s\n" % status_details['detail'] + if 'description' in status_details: + write_string += "CVE DESCRIPTION: %s\n" % status_details['description'] write_string += "CVE SUMMARY: %s\n" % cve_data[cve]["summary"] write_string += "CVSS v2 BASE SCORE: %s\n" % cve_data[cve]["scorev2"] write_string += "CVSS v3 BASE SCORE: %s\n" % cve_data[cve]["scorev3"] @@ -637,11 +637,11 @@ def cve_write_data_json(d, patched, unpatched, ignored, cve_data, cve_status): "status" : status, "link": issue_link } - _, detail, description = decode_cve_status(d, cve) - if detail: - cve_item["detail"] = detail - if description: - cve_item["description"] = description + status_details = decode_cve_status(d, cve) + if 'detail' in status_details: + cve_item["detail"] = status_details['detail'] + if 'description' in status_details: + cve_item["description"] = status_details['description'] cve_list.append(cve_item) package_data["issue"] = cve_list diff --git a/meta/lib/oe/cve_check.py b/meta/lib/oe/cve_check.py index ed5c714cb8..5edd34a2d9 100644 --- a/meta/lib/oe/cve_check.py +++ b/meta/lib/oe/cve_check.py @@ -132,8 +132,8 @@ def get_patched_cves(d): # Search for additional patched CVEs for cve in (d.getVarFlags("CVE_STATUS") or {}): - decoded_status, _, _ = decode_cve_status(d, cve) - if decoded_status == "Patched": + decoded_status = decode_cve_status(d, cve) + if 'mapping' in decoded_status and decoded_status['mapping'] == "Patched": bb.debug(2, "CVE %s is additionally patched" % cve) patched_cves.add(cve) @@ -227,19 +227,40 @@ def convert_cve_version(version): def decode_cve_status(d, cve): """ - Convert CVE_STATUS into status, detail and description. + Convert CVE_STATUS into status, vendor, product, detail and description. """ status = d.getVarFlag("CVE_STATUS", cve) if not status: - return ("", "", "") + return {} + + status_split = status.split(':', 5) + status_out = {} + status_out["detail"] = status_split[0] + product = "*" + vendor = "*" + description = "" + if len(status_split) >= 4 and status_split[1].strip() == "cpe": + # Both vendor and product are mandatory if cpe: present, the syntax is then: + # detail: cpe:vendor:product:description + vendor = status_split[2].strip() + product = status_split[3].strip() + description = status_split[4].strip() + elif len(status_split) >= 2 and status_split[1].strip() == "cpe": + # Malformed CPE + bb.warn('Invalid CPE information for CVE_STATUS[%s] = "%s", not setting CPE' % (detail, cve, status)) + else: + # Other case: no CPE, the syntax is then: + # detail: description + description = status_split[len(status_split)-1].strip() if (len(status_split) > 1) else "" - status_split = status.split(':', 1) - detail = status_split[0] - description = status_split[1].strip() if (len(status_split) > 1) else "" + status_out["vendor"] = vendor + status_out["product"] = product + status_out["description"] = description - status_mapping = d.getVarFlag("CVE_CHECK_STATUSMAP", detail) + status_mapping = d.getVarFlag("CVE_CHECK_STATUSMAP", status_out['detail']) if status_mapping is None: bb.warn('Invalid detail "%s" for CVE_STATUS[%s] = "%s", fallback to Unpatched' % (detail, cve, status)) status_mapping = "Unpatched" + status_out["mapping"] = status_mapping - return (status_mapping, detail, description) + return status_out diff --git a/meta/lib/oe/spdx30_tasks.py b/meta/lib/oe/spdx30_tasks.py index 03dc47db02..4864d6252a 100644 --- a/meta/lib/oe/spdx30_tasks.py +++ b/meta/lib/oe/spdx30_tasks.py @@ -488,21 +488,22 @@ def create_spdx(d): cve_by_status = {} if include_vex != "none": for cve in d.getVarFlags("CVE_STATUS") or {}: - status, detail, description = oe.cve_check.decode_cve_status(d, cve) + decoded_status = oe.cve_check.decode_cve_status(d, cve) # If this CVE is fixed upstream, skip it unless all CVEs are # specified. - if include_vex != "all" and detail in ( + if include_vex != "all" and 'detail' in decoded_status and \ + decoded_status['detail'] in ( "fixed-version", "cpe-stable-backport", ): bb.debug(1, "Skipping %s since it is already fixed upstream" % cve) continue - cve_by_status.setdefault(status, {})[cve] = ( + cve_by_status.setdefault(decoded_status['mapping'], {})[cve] = ( build_objset.new_cve_vuln(cve), - detail, - description, + decoded_status['detail'], + decoded_status['description'], ) cpe_ids = oe.cve_check.get_cpe_ids(d.getVar("CVE_PRODUCT"), d.getVar("CVE_VERSION")) -- cgit v1.2.3-54-g00ecf