ensure azurelinux ids get same version processing as mariner (#2499)

Signed-off-by: Alex Goodman <[email protected]>

grype/db/v6/vulnerability.go

@@ -154,10 +154,14 @@ func MimicV5Namespace(vuln *VulnerabilityHandle, affected *AffectedPackageHandle
 		switch affected.OperatingSystem.Name {
 		case "amazon":
 			family = "amazonlinux"
-		case "mariner":
-			major := strings.Split(ver, ".")[0]
-			if strings.Count(ver, ".") < 1 {
+		case "mariner", "azurelinux":
+			fields := strings.Split(ver, ".")
+			major := fields[0]
+			switch len(fields) {
+			case 1:
 				ver = fmt.Sprintf("%s.0", major)
+			default:
+				ver = fmt.Sprintf("%s.%s", major, fields[1])
 			}
 			switch major {
 			case "1", "2":

grype/db/v6/vulnerability_test.go

@@ -360,12 +360,40 @@ func TestV5Namespace(t *testing.T) {
 			expected:  "mariner:distro:azurelinux:3.0",
 		},
 		{
-			name:      "mariner azure version",
+			name:      "mariner azure version (missing version fields)",
 			provider:  "mariner",
 			osName:    "mariner",
 			osVersion: "3",
 			expected:  "mariner:distro:azurelinux:3.0",
 		},
+		{
+			name:      "azurelinux version (extra version fields)",
+			provider:  "mariner",
+			osName:    "azurelinux",
+			osVersion: "3.0.20240727",
+			expected:  "mariner:distro:azurelinux:3.0",
+		},
+		{
+			name:      "azurelinux version",
+			provider:  "mariner",
+			osName:    "azurelinux",
+			osVersion: "3.0",
+			expected:  "mariner:distro:azurelinux:3.0",
+		},
+		{
+			name:      "azurelinux version (missing version fields)",
+			provider:  "mariner",
+			osName:    "azurelinux",
+			osVersion: "3",
+			expected:  "mariner:distro:azurelinux:3.0",
+		},
+		{
+			name:      "mariner azure version (extra version fields)",
+			provider:  "mariner",
+			osName:    "mariner",
+			osVersion: "3.0.20240727",
+			expected:  "mariner:distro:azurelinux:3.0",
+		},
 		{
 			name:      "oracle linux distribution",
 			provider:  "oracle",