Ruby before 2.4.2, 2.3.5, and 2.2.8 is vulnerable to a...
Vulnerability Description
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://usn.ubuntu.com/3685-1/
- https://hackerone.com/reports/212241
- https://access.redhat.com/errata/RHSA-2018:0585
- https://access.redhat.com/errata/RHSA-2018:0378
- https://www.debian.org/security/2017/dsa-4031
- http://www.securityfocus.com/bid/100862
- http://www.securitytracker.com/id/1039363
- https://access.redhat.com/errata/RHSA-2017:3485
- https://lists.debian.org/debian-lts-announce/2018/07/msg00012.html
- https://access.redhat.com/errata/RHSA-2018:0583
- https://github.com/mruby/mruby/issues/3722
- https://www.ruby-lang.org/en/news/2017/09/14/sprintf-buffer-underrun-cve-2017-0898/
- https://security.gentoo.org/glsa/201710-18
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MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.