Multiple format string vulnerabilities in the python module in RRDtool, as used in Zenoss Core before 4.2.5 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted third argument to the rrdtool.graph function, aka ZEN-15415, a related issue to CVE-2013-2131.
https://www.securityfocus.com/bid/71540
https://lists.debian.org/debian-lts-announce/2020/03/msg00003.html
https://lists.debian.org/debian-lts-announce/2020/03/msg00000.html
https://github.com/oetiker/rrdtool-1.x/pull/532
https://github.com/oetiker/rrdtool-1.x/commit/85261a013112e278c90224033f5b0592ee387786
https://github.com/oetiker/rrdtool-1.x/commit/64ed5314af1255ab6dded45f70b39cdeab5ae2ec
https://docs.google.com/spreadsheets/d/1dHAc4PxUbs-4Dxzm1wSCE0sMz5UCMY6SW3PlMHSyuuQ/edit?usp=sharing