CVE-2017-18075
HIGHLinux Kernel < 4.14.13 - Use-After-Free in crypto/pcrypt.c
Title source: llmDescription
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)
Core 7
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/102813
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3619-2/
Issue Tracking, Release Notes, Vendor Advisory x_refsource_confirm
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.13
Third Party Advisory vendor-advisory
x_refsource_redhat
https://access.redhat.com/errata/RHSA-2018:2948
Patch x_refsource_confirm
https://github.com/torvalds/linux/commit/d76c68109f37cb85b243a1cf0f40313afd2bae68
Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d76c68109f37cb85b243a1cf0f40313afd2bae68
Third Party Advisory vendor-advisory
x_refsource_ubuntu
https://usn.ubuntu.com/3619-1/
Scores
CVSS v3
7.8
EPSS
0.0041
EPSS Percentile
32.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-763
Status
published
Products (3)
canonical/ubuntu_linux
14.04
canonical/ubuntu_linux
16.04
linux/linux_kernel
4.2 - 4.4.111
Published
Jan 24, 2018
Tracked Since
Feb 18, 2026