Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

Search

CVE-2020-27678

Severity CVSS v4.0:
Pending analysis
Type:
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Publication date:
26/10/2020
Last modified:
27/10/2020

Description

An issue was discovered in illumos before 2020-10-22, as used in OmniOS before r151030by, r151032ay, and r151034y and SmartOS before 20201022. There is a buffer overflow in parse_user_name in lib/libpam/pam_framework.c.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:illumos:illumos:*:*:*:*:*:*:*:* 2020-10-22 (excluding)
cpe:2.3:o:joyent:smartos:*:*:*:*:*:*:*:* 20201022 (excluding)
cpe:2.3:o:omniosce:omnios:*:*:*:*:community:*:*:* r151030by (excluding)
cpe:2.3:o:omniosce:omnios:*:*:*:*:community:*:*:* r151032 (including) r151032ay (including)
cpe:2.3:o:omniosce:omnios:*:*:*:*:*:*:*:* r151034 (including) r151034y (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools