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CVE-2021-27135

Public on 2021-02-10
Modified on 2021-03-19
Description

A flaw was found in xterm. A specially crafted sequence of combining characters causes an out of bounds write leading to arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Severity
Important
See what this means
CVSS v3 Base Score
9.6
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 xterm 2021-03-18 17:30 ALAS-2021-1489
Amazon Linux 2 - Core xterm 2021-03-18 01:13 ALAS2-2021-1619

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 9.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
NVD CVSSv2 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
NVD CVSSv3 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H