CVE-2018-0739
high-risk
Published 2018-03-27
Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).
Do I need to act?
!
14.4% chance of exploitation in next 30 days
EPSS score — higher than 86% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10
Medium
NETWORK
/ LOW complexity
Affected Products (7)
References (68)
Third Party Advisory
http://www.securityfocus.com/bid/103518
Third Party Advisory
http://www.securitytracker.com/id/1040576
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/03/msg00033.html
Third Party Advisory
https://security.netapp.com/advisory/ntap-20180330-0002/
and 48 more references
50
/ 100
high-risk
Severity
24/34 · High
Exploitability
12/34 · Low
Exposure
14/34 · Moderate