CVE-2020-9366 Information

Description

A buffer overflow was found in the way GNU Screen before 4.8.0 treated the special escape OSC 49. Specially crafted output or a special program could corrupt memory and crash Screen or possibly have unspecified other impact.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://www.openwall.com/lists/oss-security/2020/02/25/1 https://lists.gnu.org/archive/html/screen-devel/2020-02/msg00007.html https://security.gentoo.org/glsa/202003-62 https://www.openwall.com/lists/oss-security/2020/02/06/3

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8