CVE Database›Document archive›CVE-2015-8970

CVE-2015-8970

kernel: crypto: GPF in lrw_crypt caused by null-deref

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.0

Review impact separately from score.

Published · December 17, 2015

Updated · June 28, 2026

Description

The lrw_crypt() function in 'crypto/lrw.c' in the Linux kernel before 4.5 allows local users to cause a system crash and a denial of service by the NULL pointer dereference via accept(2) system call for AF_ALG socket without calling setkey() first to set a cipher key.

Statement

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6 as the code with the flaw is not present in the products listed.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2. Future Linux kernel updates for the respective releases might address this issue.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 5.5
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS 2.0 · 4.9
AV:L/AC:L/Au:N/C:N/I:N/A:C

CWE-476 · NULL Pointer Dereference