Vulnerability CVE-2018-0739: Information

Description

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).

Severity: MEDIUM (6.5) Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Fixed packages

References to Advisories, Solutions, and Tools

1. Affected configurations:

   1. Configuration 1

      cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

      Start including

      1.0.2b

      End including

      1.0.2n

      ---

      cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

      Start including

      1.1.0

      End including

      1.1.0g

      ---

      Configuration 2

      cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

      ---

      cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

      ---

      cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

      ---

      cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

      ---

      cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

      ---

      cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*

      ---