CVE-2017-0898
ruby2.3 - security update
9.1
CRITICAL
CVSS 3.1
EPSS 1.4%
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.
How to fix CVE-2017-0898
To remediate CVE-2017-0898, upgrade the affected package to a fixed version below.
- Alpine/ruby—upgrade to 2.4.2-r0 or later
- —upgrade to 1.8.7.358-7.1+deb7u4 or later
- —upgrade to 1.9.3.194-8.1+deb7u6 or later
- —upgrade to 2.3.3-1+deb9u2 or later
Is CVE-2017-0898 being exploited?
Low — EPSS is 1.4%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.4.2-r0
- from 0, < 1.8.7.358-7.1+deb7u4
- from 0, < 1.9.3.194-8.1+deb7u6
- from 0, < 2.3.3-1+deb9u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |