CVE-2021-3712

Public on 2021-10-01
Modified on 2021-11-04
Description
It was found that openssl assumed ASN.1 strings to be NUL terminated. A malicious actor may be able to force an application into calling openssl function with a specially crafted, non-NUL terminated string to deliberately hit this bug, which may result in a crash of the application, causing a Denial of Service attack, or possibly, memory disclosure. The highest threat from this vulnerability is to data confidentiality and system availability.
Severity
Medium
CVSS v3 Base Score
7.4
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 openssl11 2021-10-04 20:17 ALAS2-2021-1714
Amazon Linux 2 openssl 2021-10-26 23:29 ALAS2-2021-1721
Amazon Linux 1 openssl 2021-10-01 18:00 ALAS-2021-1541

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD CVSSv2 5.8 AV:N/AC:M/Au:N/C:P/I:N/A:P
NVD CVSSv3 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H