CVE-2018-0739

Public on 2018-08-22
Modified on 2018-12-07
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
CVSS v3 Base Score
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 openssl 2018-11-07 22:07 ALAS2-2018-1102
Amazon Linux 1 openssl 2018-12-05 23:20 ALAS-2018-1102
Amazon Linux 1 openssl 2018-08-22 18:59 ALAS-2018-1065
Amazon Linux 1 openssl 2018-12-05 23:20 ALAS-2018-1102
Amazon Linux 1 openssl 2018-08-22 18:59 ALAS-2018-1065
Amazon Linux 1 mysql57 2018-08-22 19:35 ALAS-2018-1070
Amazon Linux 1 mysql56 2018-08-22 19:34 ALAS-2018-1069

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P
NVD CVSSv3 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H