Critical severity · published Sep 15, 2017
CVE-2017-0898
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
9.1
CVSS
9.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)9.7% · higher than 95% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RU
Ruby · Ruby-lang
2.2.0; 2.2.1; 2.2.2; 2.2.3; 2.2.4; 2.2.5; +9 more · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-0898
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-0898
Third Party Advisory
http://www.securityfocus.com/bid/100862
Third Party Advisory
http://www.securitytracker.com/id/1039363
access.redhat.com
https://access.redhat.com/errata/RHSA-2017:3485
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:0378
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:0583
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:0585
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