CVE-2017-18075

crypto/pcrypt.c in the Linux kernel before 4.14.13 mishandles freeing instances, allowing a local user able to access the AF_ALG-based AEAD interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt (CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an incorrect pointer) or possibly have unspecified other impact by executing a crafted sequence of system calls.

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

7.8^/10

CVSS v3.0 : HIGH

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

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

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://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13	Issue Tracking Release Notes Vendor Advisory
https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68	Patch
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68	Issue Tracking Patch Third Party Advisory
http://www.securityfocus.com/bid/102813	Third Party Advisory VDB Entry
https://usn.ubuntu.com/3619-1/
https://usn.ubuntu.com/3619-2/
https://access.redhat.com/errata/RHSA-2018:2948

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Information

Published : 2018-01-24 10:29

Updated : 2019-10-03 00:03

NVD link : CVE-2017-18075

Mitre link : CVE-2017-18075

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-763

Release of Invalid Pointer or Reference

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