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

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CVE-2019-8912

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
18/02/2019
Last modified:
02/06/2021

Description

In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr.

Impact

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

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
7.80
Severity 3.x
HIGH
Vector 2.0
AV:L/AC:L/Au:N/C:C/I:C/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.20 HIGH
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

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

Base Score 2.0
7.20
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.10 (including) 4.14.103 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.19 (including) 4.19.25 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 (including) 4.20.12 (excluding)
cpe:2.3:o:linux:linux_kernel:5.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.0:rc8:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

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


References to Advisories, Solutions, and Tools