CVE-2017-0898
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 9.7%
exploitation probability
9.7%top 5% of all CVEs
observed exploitation
nono source reports it
Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a malicious format string which contains a precious specifier (*) with a huge minus value. Such situation can lead to a buffer overrun, resulting in a heap memory corruption or an information disclosure from the heap.
Affected products
HackerOne · RubyReferences
https://access.redhat.com/errata/RHSA-2017:3485https://access.redhat.com/errata/RHSA-2018:0378https://access.redhat.com/errata/RHSA-2018:0583https://access.redhat.com/errata/RHSA-2018:0585https://github.com/mruby/mruby/issues/3722https://hackerone.com/reports/212241https://lists.debian.org/debian-lts-announce/2018/07/msg00012.htmlhttps://security.gentoo.org/glsa/201710-18https://usn.ubuntu.com/3685-1/https://www.debian.org/security/2017/dsa-4031https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/http://www.securityfocus.com/bid/100862