Provide references for CVE-2018-12458.
Where can I find more information about CVE-2018-12458?
References are available at: https://www.debian.org/security/2018/dsa-4249, https://github.com/FFmpeg/FFmpeg/commit/e1182fac1afba92a4975917823a5f644bee7e6e8, https://github.com/FFmpeg/FFmpeg/commit/6bbef938839adc55e8e048bc9cc2e0fafe2064df.