Augeas versions up to and including 1.8.0 are vulnerable to heap-based buffer overflow due to improper handling of escaped strings. Attacker could send crafted strings that would cause the application using augeas to copy past the end of a buffer, leading to a crash or possible code execution.
http://www.debian.org/security/2017/dsa-3949
http://www.securityfocus.com/bid/100378
https://access.redhat.com/errata/RHSA-2017:2788
https://access.redhat.com/errata/RHSA-2019:2403
Source: MITRE
Published: 2017-08-17
Updated: 2017-12-09
Type: CWE-119
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL