CVE-2017-18075

HIGH

Linux Kernel < 4.4.111 - Denial of Service

Title source: rule

Description

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.

References (7)

[Issue Tracking, Patch, Third Party Advisory] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/102813

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2018:2948

[Patch] https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68

View Patch ZIP pw:eip

[Third Party Advisory] https://usn.ubuntu.com/3619-1/

[Third Party Advisory] https://usn.ubuntu.com/3619-2/

[Issue Tracking, Release Notes, Vendor Advisory] https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13

Scores

CVSS v3 7.8

EPSS 0.0007

EPSS Percentile 20.7%

Attack Vector LOCAL

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

Classification

CWE

CWE-763

Status published

Affected Products (3)

linux/linux_kernel < 4.4.111

canonical/ubuntu_linux

canonical/ubuntu_linux

Timeline

Published Jan 24, 2018

Tracked Since Feb 18, 2026