cvecat

SYNOPSIS

cvecat [options] CVE-YYYY-NNNN ...

DESCRIPTION

A command line utility to format and write CVE data to stdout.

cvecat takes one or more CVE identifiers as arguments and outputs the data to standard output. If no arguments are provided, cvecat reads the CVE identifiers from stdin, one per line.

To test formatting, cvecat can read JSON data from stdin by using - as an argument.

The CVE data is download from the cvelist project on GitHub:

https://github.com/CVEProject/cvelistV5

BUILD

go install codeberg.org/msantos/cvecat/cmd/cvecat@latest

EXAMPLES

Write CVEs to stdout

cvecat CVE-2019-5007 CVE-2019-5008 CVE-2019-5009

Read from stdin to stdout

cat << EOF | cvecat
CVE-2019-5007
CVE-2019-5008
CVE-2019-5009
EOF

Specify Formatting

FORMAT='ID: {{.CVE.CveMetadata.CveID}}
Assigner: {{.CVE.CveMetadata.AssignerShortName}}
'
cvecat --format="$FORMAT" CVE-2019-6013

Test Formatting

cat CVE-2019-6013.json | cvecat --format="$FORMAT" -

OPTIONS

--dryrun : Do not perform any network operations

--format string : Template for formatting output using the Go template syntax

--verbose int : Enable debug messages. To see the JSON field names for use in the template, use verbose=3.

ENVIRONMENT VARIABLES

CVECAT_FORMAT :set default value for --format

Alternatives

shell

#!/bin/bash

set -o errexit
set -o nounset
set -o pipefail

cve() {
  CVE="$1"

  OFS="$IFS"
  IFS="-"
  set -- $CVE

  YEAR="$2"
  ID="$3"

  if [ "$1" != "CVE" ]; then
    exit 1
  fi
  if [[ ! "$2" =~ ^[0-9]{4}$ ]]; then
    exit 1
  fi
  if [[ ! "$3" =~ ^[0-9][0-9][0-9][0-9]+$ ]]; then
    exit 1
  fi

  # https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2019/10xxx/CVE-2019-10210.json
  URL="https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/$YEAR/${ID%[0-9][0-9][0-9]}xxx/$CVE.json"

  curl -s "$URL"
  IFS="$OFS"
}

for arg in "$@"; do
  cve "$arg" |
    jq -r '.containers.cna.descriptions[] | select(.lang == "en") | .value'
done