CVE-2018-14619

A flaw was found in the crypto subsystem of the Linux kernel before version kernel-4.15-rc4. The "null skcipher" was being dropped when each af_alg_ctx was freed instead of when the aead_tfm was freed. This can cause the null skcipher to be freed while it is still in use leading to a local user being able to crash the system or possibly escalate privileges.

CVSS v3.0 7.8 HIGH
CVSS v2.0 7.2 HIGH

7.8^/10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:L/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b32a7dc8aef1882fbf983eb354837488cc9d54dc	Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14619	Issue Tracking Third Party Advisory
http://www.securityfocus.com/bid/105200	Third Party Advisory VDB Entry
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0013	Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2948	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel:4.15:rc1::::::
	cpe:2.3:o:linux:linux_kernel:4.15:rc2::::::
	cpe:2.3:o:linux:linux_kernel:4.15:rc3::::::
	cpe:2.3:o:linux:linux_kernel::::::::

Information

Published : 2018-08-30 05:29

Updated : 2023-02-24 10:43

NVD link : CVE-2018-14619

Mitre link : CVE-2018-14619

JSON object : View

CWE

CWE-20

Improper Input Validation

Products Affected

linux

linux_kernel

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7.8 /10